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Old 11-30-2017, 10:29 PM   #1
mcmxciv
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Registered: Nov 2017
Posts: 17

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Why vi command could affect parent directory's mtime and ctime?

I launched vi to edit a file,quiting without changing anything.I found that mtime and ctime of the file did't change,which is in line with predictions.But its parent directory's attribute has been changed.The following is steps:

[root@ ~]# pwd
/root
[root@ ~]# stat /root
File: ‘/root’
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: 802h/2050d Inode: 1048577 Links: 17
Access: (0550/dr-xr-x---) Uid: ( 0/ root) Gid: ( 0/ root)
Context: system_u: object_r:admin_home_t:s0
Access: 2017-12-01 12:10:15.305000000 +0800
Modify: 2017-12-01 12:22:36.900000000 +0800
Change: 2017-12-01 12:22:36.900000000 +0800
Birth: -
[root@ ~]# stat Gateway
File: ‘Gateway’
Size: 13 Blocks: 8 IO Block: 4096 regular file
Device: 802h/2050d Inode: 1060285 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Context: unconfined_u: object_r:admin_home_t:s0
Access: 2017-12-01 12:22:30.318000000 +0800
Modify: 2017-12-01 12:01:45.185000000 +0800
Change: 2017-12-01 12:01:45.195000000 +0800
Birth: -
[root@ ~]# vi Gateway
[root@ ~]# stat Gateway
File: ‘Gateway’
Size: 13 Blocks: 8 IO Block: 4096 regular file
Device: 802h/2050d Inode: 1060285 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Context: unconfined_u: object_r:admin_home_t:s0
Access: 2017-12-01 12:23:07.781000000 +0800
Modify: 2017-12-01 12:01:45.185000000 +0800
Change: 2017-12-01 12:01:45.195000000 +0800
Birth: -
[root@ ~]# stat /root
File: ‘/root’
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: 802h/2050d Inode: 1048577 Links: 17
Access: (0550/dr-xr-x---) Uid: ( 0/ root) Gid: ( 0/ root)
Context: system_u: object_r:admin_home_t:s0
Access: 2017-12-01 12:10:15.305000000 +0800
Modify: 2017-12-01 12:23:11.396000000 +0800
Change: 2017-12-01 12:23:11.396000000 +0800
Birth: -
[root@ ~]#


My distribution is CentOS with kernel 3.10.0-693.el7.x86_64.My question is :why it happens?
Last edited by mcmxciv; 11-30-2017 at 10:30 PM.
 
Old 12-01-2017, 12:26 AM   #2
!!!
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Registered: Jan 2017
Location: Fremont, CA, USA
Distribution: Trying any&ALL on old/minimal
Posts: 997

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Lightbulb strace rocks
The best way might be to: strace [-f -o <outfile>] vi <file>
To see if it creates something like a tmp file
(/tmp or /var/tmp yes, but . aka $CWD ? Idk).
Or something to do with like .vimrc init/config stuff.

By the way, I think you mean "current", not "parent" dir. Yes?
("parent" of /root would be / aka .. vs .)

Other LQ'ers info welcome (I'm always learnng)

Interesting investigations/studys you're doing
Welcome to LQ Next stop: sysdig !!!
Last edited by !!!; 12-01-2017 at 12:37 AM.
 
1 members found this post helpful.
Old 12-01-2017, 01:05 AM   #3
mcmxciv
LQ Newbie
 
Registered: Nov 2017
Posts: 17

Original Poster
Rep: Reputation: Disabled
Quote:
Originally Posted by !!! View Post
The best way might be to: strace [-f -o <outfile>] vi <file>
To see if it creates something like a tmp file
(/tmp or /var/tmp yes, but . aka $CWD ? Idk).
Or something to do with like .vimrc init/config stuff.

By the way, I think you mean "current", not "parent" dir. Yes?
("parent" of /root would be / aka .. vs .)

Other LQ'ers info welcome (I'm always learnng)

Interesting investigations/studys you're doing
Welcome to LQ Next stop: sysdig !!!
its output:

[root@ a]# strace -f -o /tmp/err vi tets
[root@ a]# stat ../a
File: ‘../a’
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: 802h/2050d Inode: 1320458 Links: 3
Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Context: unconfined_ubject_r:user_tmp_t:s0
Access: 2017-12-01 14:58:16.020000000 +0800
Modify: 2017-12-01 15:01:25.175000000 +0800
Change: 2017-12-01 15:01:25.175000000 +0800
Birth: -
[root@ tmp]# vi err

8793 execve("/usr/bin/vi", ["vi", "tets"], [/* 36 vars */]) = 0
8793 brk(NULL) = 0x1c45000
8793 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f78d035c000
8793 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
8793 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
8793 fstat(3, {st_mode=S_IFREG|0644, st_size=176187, ...}) = 0
8793 mmap(NULL, 176187, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f78d0330000
8793 close(3) = 0
8793 open("/lib64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300j\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=155744, ...}) = 0
8793 mmap(NULL, 2255216, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cff15000
8793 mprotect(0x7f78cff39000, 2093056, PROT_NONE) = 0
8793 mmap(0x7f78d0138000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x23000) = 0x7f78d0138000
8793 mmap(0x7f78d013a000, 6512, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f78d013a000
8793 close(3) = 0
8793 open("/lib64/libtinfo.so.5", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@\316\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=174520, ...}) = 0
8793 mmap(NULL, 2268928, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cfceb000
8793 mprotect(0x7f78cfd10000, 2097152, PROT_NONE) = 0
8793 mmap(0x7f78cff10000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x25000) = 0x7f78cff10000
8793 close(3) = 0
8793 open("/lib64/libacl.so.1", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\37\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=37056, ...}) = 0
8793 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f78d032f000
8793 mmap(NULL, 2130560, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cfae2000
8793 mprotect(0x7f78cfae9000, 2097152, PROT_NONE) = 0
8793 mmap(0x7f78cfce9000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7f78cfce9000
8793 close(3) = 0
8793 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\35\2\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=2127336, ...}) = 0
8793 mmap(NULL, 3940800, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cf71f000
8793 mprotect(0x7f78cf8d7000, 2097152, PROT_NONE) = 0
8793 mmap(0x7f78cfad7000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b8000) = 0x7f78cfad7000
8793 mmap(0x7f78cfadd000, 16832, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f78cfadd000
8793 close(3) = 0
8793 open("/lib64/libpcre.so.1", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360\25\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=402384, ...}) = 0
8793 mmap(NULL, 2494984, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cf4bd000
8793 mprotect(0x7f78cf51d000, 2097152, PROT_NONE) = 0
8793 mmap(0x7f78cf71d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x60000) = 0x7f78cf71d000
8793 close(3) = 0
8793 open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\16\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=19776, ...}) = 0
8793 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f78d032e000
8793 mmap(NULL, 2109744, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cf2b9000
8793 mprotect(0x7f78cf2bb000, 2097152, PROT_NONE) = 0
8793 mmap(0x7f78cf4bb000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f78cf4bb000
8793 close(3) = 0
8793 open("/lib64/libattr.so.1", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\23\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=19888, ...}) = 0
8793 mmap(NULL, 2113904, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cf0b4000
8793 mprotect(0x7f78cf0b8000, 2093056, PROT_NONE) = 0
8793 mmap(0x7f78cf2b7000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f78cf2b7000
8793 close(3) = 0
8793 open("/lib64/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0m\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=144792, ...}) = 0
8793 mmap(NULL, 2208904, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cee98000
8793 mprotect(0x7f78ceeaf000, 2093056, PROT_NONE) = 0
8793 mmap(0x7f78cf0ae000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7f78cf0ae000
8793 mmap(0x7f78cf0b0000, 13448, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f78cf0b0000
8793 close(3) = 0
8793 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f78d032d000
8793 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f78d032b000
8793 arch_prctl(ARCH_SET_FS, 0x7f78d032b800) = 0
8793 mprotect(0x7f78cfad7000, 16384, PROT_READ) = 0
8793 mprotect(0x7f78cf0ae000, 4096, PROT_READ) = 0
8793 mprotect(0x7f78cf2b7000, 4096, PROT_READ) = 0
8793 mprotect(0x7f78cf4bb000, 4096, PROT_READ) = 0
8793 mprotect(0x7f78cf71d000, 4096, PROT_READ) = 0
8793 mprotect(0x7f78cfce9000, 4096, PROT_READ) = 0
8793 mprotect(0x7f78cff10000, 16384, PROT_READ) = 0
8793 mprotect(0x7f78d0138000, 4096, PROT_READ) = 0
8793 mprotect(0x6cd000, 4096, PROT_READ) = 0
8793 mprotect(0x7f78d035d000, 4096, PROT_READ) = 0
8793 munmap(0x7f78d0330000, 176187) = 0
8793 set_tid_address(0x7f78d032bad0) = 8793
8793 set_robust_list(0x7f78d032bae0, 24) = 0
8793 rt_sigaction(SIGRTMIN, {0x7f78cee9e7e0, [], SA_RESTORER|SA_SIGINFO, 0x7f78ceea75e0}, NULL, 8) = 0
8793 rt_sigaction(SIGRT_1, {0x7f78cee9e870, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x7f78ceea75e0}, NULL, 8) = 0
8793 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
8793 getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
8793 statfs("/sys/fs/selinux", {f_type=SELINUX_MAGIC, f_bsize=4096, f_blocks=0, f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0}, f_namelen=255, f_frsize=4096, f_flags=ST_VALID|ST_RELATIME}) = 0
8793 statfs("/sys/fs/selinux", {f_type=SELINUX_MAGIC, f_bsize=4096, f_blocks=0, f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0}, f_namelen=255, f_frsize=4096, f_flags=ST_VALID|ST_RELATIME}) = 0
8793 stat("/sys/fs/selinux", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
8793 brk(NULL) = 0x1c45000
8793 brk(0x1c66000) = 0x1c66000
8793 access("/etc/selinux/config", F_OK) = 0
8793 sigaltstack({ss_sp=0x1c45030, ss_flags=0, ss_size=8192}, NULL) = 0
8793 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
8793 fstat(3, {st_mode=S_IFREG|0644, st_size=106070960, ...}) = 0
8793 mmap(NULL, 106070960, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f78c896f000
8793 close(3) = 0
8793 ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
8793 getcwd("/tmp/a", 4096) = 7
8793 chdir("/tmp/a") = 0
8793 chdir("/root") = 0
8793 getcwd("/root", 1025) = 6
8793 chdir("/tmp/a") = 0
8793 sysinfo({uptime=20787, loads=[192, 960, 2976], totalram=6088568832, freeram=5382508544, sharedram=0, bufferram=195735552, totalswap=6144651264, freeswap=6144651264, procs=157, totalhigh=0, freehigh=0, mem_unit=1}) = 0
8793 getrlimit(RLIMIT_DATA, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
8793 getuid() = 0
8793 stat("/usr/share/vim", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
8793 getcwd("/tmp/a", 4096) = 7
8793 stat("tets", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
8793 rt_sigaction(SIGWINCH, {0x461320, [], SA_RESTORER, 0x7f78cf754270}, {SIG_DFL, [], 0}, 8) = 0
8793 rt_sigprocmask(SIG_UNBLOCK, [WINCH], [], 8) = 0
8793 rt_sigaction(SIGTSTP, {SIG_DFL, [], SA_RESTORER, 0x7f78cf754270}, {SIG_DFL, [], 0}, 8) = 0
8793 rt_sigprocmask(SIG_UNBLOCK, [TSTP], [], 8) = 0
8793 rt_sigaction(SIGPIPE, {SIG_IGN, [], SA_RESTORER, 0x7f78cf754270}, {SIG_DFL, [], 0}, 8) = 0
8793 rt_sigprocmask(SIG_UNBLOCK, [PIPE], [], 8) = 0
8793 rt_sigaction(SIGINT, {0x461350, [], SA_RESTORER, 0x7f78cf754270}, {SIG_DFL, [], 0}, 8) = 0
8793 rt_sigprocmask(SIG_UNBLOCK, [INT], [], 8) = 0
8793 rt_sigaction(SIGALRM, {SIG_IGN, [], SA_RESTORER, 0x7f78cf754270}, {SIG_DFL, [], 0}, 8) = 0
8793 rt_sigprocmask(SIG_UNBLOCK, [ALRM], [], 8) = 0
8793 rt_sigaction(SIGPWR, {0x461380, [], SA_RESTORER, 0x7f78cf754270}, {SIG_DFL, [], 0}, 8) = 0
8793 rt_sigprocmask(SIG_UNBLOCK, [PWR], [], 8) = 0
8793 rt_sigaction(SIGHUP, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGQUIT, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGILL, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGTRAP, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGABRT, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGFPE, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGBUS, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGSEGV, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGSYS, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGTERM, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGVTALRM, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGPROF, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGXCPU, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGXFSZ, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGUSR1, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 rt_sigaction(SIGUSR2, {0x461df0, [], SA_RESTORER|SA_STACK, 0x7f78cf754270}, NULL, 8) = 0
8793 ioctl(0, TCGETS, {B38400 opost isig icanon echo ...}) = 0
8793 stat("/etc/sysconfig/64bit_strstr_via_64bit_strstr_sse2_unaligned", 0x7ffe84c68860) = -1 ENOENT (No such file or directory)
8793 ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
8793 stat("/root/.terminfo", 0x1c4d790) = -1 ENOENT (No such file or directory)
8793 stat("/etc/terminfo", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
8793 stat("/usr/share/terminfo", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
8793 access("/etc/terminfo/x/xterm", R_OK) = -1 ENOENT (No such file or directory)
8793 access("/usr/share/terminfo/x/xterm", R_OK) = 0
8793 open("/usr/share/terminfo/x/xterm", O_RDONLY) = 3
8793 fstat(3, {st_mode=S_IFREG|0644, st_size=3371, ...}) = 0
8793 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f78d035b000
8793 read(3, "\32\0010\0&\0\17\0\235\1l\5xterm|xterm terminal"..., 4096) = 3371
8793 read(3, "", 4096) = 0
8793 close(3) = 0
8793 munmap(0x7f78d035b000, 4096) = 0
8793 ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
8793 ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
8793 ioctl(1, TIOCGWINSZ, {ws_row=48, ws_col=236, ws_xpixel=0, ws_ypixel=0}) = 0
8793 ioctl(0, TCGETS, {B38400 opost isig icanon echo ...}) = 0
8793 ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
8793 ioctl(1, TIOCGWINSZ, {ws_row=48, ws_col=236, ws_xpixel=0, ws_ypixel=0}) = 0
8793 brk(NULL) = 0x1c66000
8793 brk(0x1c8b000) = 0x1c8b000
8793 ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
8793 ioctl(1, TIOCGWINSZ, {ws_row=48, ws_col=236, ws_xpixel=0, ws_ypixel=0}) = 0
8793 open(".", O_RDONLY) = 3
8793 fchdir(3) = 0
8793 chdir("/etc") = 0
8793 getcwd("/etc", 4096) = 5
8793 fchdir(3) = 0
8793 close(3) = 0
8793 stat("/etc/virc", {st_mode=S_IFREG|0644, st_size=1982, ...}) = 0
8793 open("/etc/virc", O_RDONLY) = 3
8793 fcntl(3, F_GETFD) = 0
8793 fcntl(3, F_SETFD, FD_CLOEXEC) = 0
8793 fcntl(3, F_GETFL) = 0x8000 (flags O_RDONLY|O_LARGEFILE)
8793 fstat(3, {st_mode=S_IFREG|0644, st_size=1982, ...}) = 0
8793 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f78d035b000
8793 read(3, "if v:lang =~ "utf8$" || v:lang ="..., 4096) = 1982
8793 getuid() = 0
8793 read(3, "", 4096) = 0
8793 read(3, "", 4096) = 0
8793 close(3) = 0
8793 munmap(0x7f78d035b000, 4096) = 0
8793 open(".", O_RDONLY) = 3
8793 fchdir(3) = 0
8793 chdir("/root") = 0
8793 getcwd("/root", 4096) = 6
8793 fchdir(3) = 0
8793 close(3) = 0
8793 stat("/root/.vimrc", 0x7ffe84c691a0) = -1 ENOENT (No such file or directory)
8793 open("/root/.vimrc", O_RDONLY) = -1 ENOENT (No such file or directory)
8793 open("/root/_vimrc", O_RDONLY) = -1 ENOENT (No such file or directory)
8793 open(".", O_RDONLY) = 3
8793 fchdir(3) = 0
8793 chdir("/root/.vim") = -1 ENOENT (No such file or directory)
8793 getcwd("/tmp/a", 4096) = 7
8793 fchdir(3) = 0
8793 close(3) = 0
8793 stat("/root/.vim/vimrc", 0x7ffe84c691a0) = -1 ENOENT (No such file or directory)
8793 open("/root/.vim/vimrc", O_RDONLY) = -1 ENOENT (No such file or directory)
8793 open(".", O_RDONLY) = 3
8793 fchdir(3) = 0
8793 chdir("/root") = 0
8793 getcwd("/root", 4096) = 6
8793 fchdir(3) = 0
8793 close(3) = 0
8793 stat("/root/.exrc", 0x7ffe84c691a0) = -1 ENOENT (No such file or directory)
8793 open("/root/.exrc", O_RDONLY) = -1 ENOENT (No such file or directory)
8793 ioctl(0, TCGETS, {B38400 opost isig icanon echo ...}) = 0
8793 ioctl(0, SNDCTL_TMR_START or TCSETS, {B38400 opost -isig -icanon -echo ...}) = 0
8793 ioctl(0, TCGETS, {B38400 opost -isig -icanon -echo ...}) = 0
8793 write(1, "\33[?1049h\33[?1h\33=", 15) = 15
8793 stat("/tmp/a/tets", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
8793 getuid() = 0
8793 socket(AF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
8793 connect(3, {sa_family=AF_LOCAL, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
8793 close(3) = 0
8793 socket(AF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
8793 connect(3, {sa_family=AF_LOCAL, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
8793 close(3) = 0
8793 open("/etc/nsswitch.conf", O_RDONLY|O_CLOEXEC) = 3
8793 fstat(3, {st_mode=S_IFREG|0644, st_size=1746, ...}) = 0
8793 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f78d035b000
8793 read(3, "#\n# /etc/nsswitch.conf\n#\n# An ex"..., 4096) = 1746
8793 read(3, "", 4096) = 0
8793 close(3) = 0
8793 munmap(0x7f78d035b000, 4096) = 0
8793 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
8793 fstat(3, {st_mode=S_IFREG|0644, st_size=176187, ...}) = 0
8793 mmap(NULL, 176187, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f78d0330000
8793 close(3) = 0
8793 open("/lib64/libnss_files.so.2", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320!\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=62184, ...}) = 0
8793 mmap(NULL, 2173048, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78c875c000
8793 mprotect(0x7f78c8768000, 2093056, PROT_NONE) = 0
8793 mmap(0x7f78c8967000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xb000) = 0x7f78c8967000
8793 mmap(0x7f78c8969000, 22648, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f78c8969000
8793 close(3) = 0
8793 mprotect(0x7f78c8967000, 4096, PROT_READ) = 0
8793 munmap(0x7f78d0330000, 176187) = 0
8793 open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 3
8793 fstat(3, {st_mode=S_IFREG|0644, st_size=3259, ...}) = 0
8793 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f78d035b000
8793 read(3, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 3259
8793 close(3) = 0
8793 munmap(0x7f78d035b000, 4096) = 0
8793 uname({sysname="Linux", nodename="asset.xcsc", ...}) = 0
8793 stat("tets", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
8793 stat("tets", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
8793 access("tets", W_OK) = 0
8793 open("tets", O_RDONLY) = 3
8793 readlink("tets", 0x7ffe84c67a70, 4095) = -1 EINVAL (Invalid argument)
8793 open(".tets.swp", O_RDONLY) = -1 ENOENT (No such file or directory)
8793 open(".tets.swp", O_RDWR|O_CREAT|O_EXCL, 0600) = 4
8793 open(".tets.swpx", O_RDONLY) = -1 ENOENT (No such file or directory)
8793 open(".tets.swpx", O_RDWR|O_CREAT|O_EXCL, 0600) = 5
8793 fstat(4, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0
8793 fstat(5, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0
8793 close(5) = 0
8793 unlink(".tets.swpx") = 0
8793 close(4) = 0
8793 unlink(".tets.swp") = 0
8793 stat(".tets.swp", 0x7ffe84c68a00) = -1 ENOENT (No such file or directory)
8793 lstat(".tets.swp", 0x7ffe84c68b80) = -1 ENOENT (No such file or directory)
8793 getcwd("/tmp/a", 4096) = 7
8793 lstat(".tets.swp", 0x7ffe84c68f00) = -1 ENOENT (No such file or directory)
8793 open(".tets.swp", O_RDWR|O_CREAT|O_EXCL|O_NOFOLLOW, 0600) = 4
8793 fcntl(4, F_GETFD) = 0
8793 fcntl(4, F_SETFD, FD_CLOEXEC) = 0
8793 getxattr(".tets.swp", "security.selinux", "unconfined_ubject_r:user_tmp_t:s0", 255) = 36
8793 access("/var/run/setrans/.setrans-unix", F_OK) = -1 ENOENT (No such file or directory)
8793 futex(0x7f78d013b958, FUTEX_WAKE_PRIVATE, 2147483647) = 0
8793 getxattr(".tets.swp", "security.selinux", "unconfined_ubject_r:user_tmp_t:s0", 255) = 36
8793 getcwd("/tmp/a", 4096) = 7
8793 lseek(4, 0, SEEK_SET) = 0
8793 write(4, "b0VIM 7.4\0\0\0\0\20\0\0\272\375 Z\26&\24\0Y"\0\0root"..., 4096) = 4096
8793 select(1, [0], NULL, [0], {0, 0}) = 0 (Timeout)
8793 chmod(".tets.swp", 0644) = 0
8793 write(1, "\33[1;48r\33[?12;25h\33[?12l\33[?25h\33[27"..., 62) = 62
8793 brk(NULL) = 0x1c8b000
8793 brk(0x1cae000) = 0x1cae000
8793 read(3, "", 8192) = 0
8793 close(3) = 0
8793 brk(NULL) = 0x1cae000
8793 brk(NULL) = 0x1cae000
8793 brk(0x1c9e000) = 0x1c9e000
8793 brk(NULL) = 0x1c9e000
8793 write(1, " 0L, 0C", 7) = 7
8793 select(1, [0], NULL, [0], {0, 0}) = 0 (Timeout)
8793 getcwd("/tmp/a", 4096) = 7
8793 execve("/usr/bin/vi", ["vi", "tets"], [/* 36 vars */]) = 0
8793 brk(NULL) = 0x1c45000
8793 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f78d035c000
8793 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
8793 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
8793 fstat(3, {st_mode=S_IFREG|0644, st_size=176187, ...}) = 0
8793 mmap(NULL, 176187, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f78d0330000
8793 close(3) = 0
8793 open("/lib64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300j\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=155744, ...}) = 0
8793 mmap(NULL, 2255216, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cff15000
8793 mprotect(0x7f78cff39000, 2093056, PROT_NONE) = 0
8793 mmap(0x7f78d0138000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x23000) = 0x7f78d0138000
8793 mmap(0x7f78d013a000, 6512, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f78d013a000
8793 close(3) = 0
8793 open("/lib64/libtinfo.so.5", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@\316\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=174520, ...}) = 0
8793 mmap(NULL, 2268928, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cfceb000
8793 mprotect(0x7f78cfd10000, 2097152, PROT_NONE) = 0
8793 mmap(0x7f78cff10000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x25000) = 0x7f78cff10000
8793 close(3) = 0
8793 open("/lib64/libacl.so.1", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\37\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=37056, ...}) = 0
8793 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f78d032f000
8793 mmap(NULL, 2130560, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cfae2000
8793 mprotect(0x7f78cfae9000, 2097152, PROT_NONE) = 0
8793 mmap(0x7f78cfce9000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7f78cfce9000
8793 close(3) = 0
8793 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\35\2\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=2127336, ...}) = 0
8793 mmap(NULL, 3940800, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cf71f000
8793 mprotect(0x7f78cf8d7000, 2097152, PROT_NONE) = 0
8793 mmap(0x7f78cfad7000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b8000) = 0x7f78cfad7000
8793 mmap(0x7f78cfadd000, 16832, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f78cfadd000
8793 close(3) = 0
8793 open("/lib64/libpcre.so.1", O_RDONLY|O_CLOEXEC) = 3
8793 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360\25\0\0\0\0\0\0"..., 832) = 832
8793 fstat(3, {st_mode=S_IFREG|0755, st_size=402384, ...}) = 0
8793 mmap(NULL, 2494984, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f78cf4bd000
8793 mprotect(0x7f78cf51d000, 2097152, PROT_NONE) = 0
8793 mmap(0x7f78cf71d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x60000) = 0x7f78cf71d000
8793 close(3) = 0
8793 open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
Last edited by mcmxciv; 12-01-2017 at 01:38 AM.
 
Old 12-01-2017, 02:12 AM   #4
MadeInGermany
Senior Member
 
Registered: Dec 2011
Location: Simplicity
Posts: 2,790

Rep: Reputation: 1201Reputation: 1201Reputation: 1201Reputation: 1201Reputation: 1201Reputation: 1201Reputation: 1201Reputation: 1201Reputation: 1201
vim creates a recovery file (or even two files) next to the edited file.
Quote:
8793 open(".tets.swp", O_RDWR|O_CREAT|O_EXCL, 0600) = 4

8793 open(".tets.swpx", O_RDWR|O_CREAT|O_EXCL, 0600) = 5
That changes the date of the directory.
Try
Code:
vi -n
to not create a recovery file.
(BTW vi is an alias to vim. The original Unix vi creates a recovery file in /var/preserve/)
 
1 members found this post helpful.
Old 12-01-2017, 02:46 AM   #5
jlliagre
Moderator
 
Registered: Feb 2004
Location: Outside Paris
Distribution: Solaris 11.4, Oracle Linux, Mint, Debian/WSL
Posts: 9,789

Rep: Reputation: 492Reputation: 492Reputation: 492Reputation: 492Reputation: 492
If you know you aren't going to change a file contents, you can also use the view command instead of vi.

It is the same vi(m) but with the read-only option set. It won't create a recovery file.

Should you change your mind, you can still write the file with the ":w!".
 
Old 12-01-2017, 07:53 AM   #6
mcmxciv
LQ Newbie
 
Registered: Nov 2017
Posts: 17

Original Poster
Rep: Reputation: Disabled
thanks very much!
 
  


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