LinuxQuestions.org - ifconfig not working as expected...

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ifconfig not working as expected...

(Sorry if my RE is a little vague, unsure how else to word this!)

So I've finally settled on CentOS. Stable (AFAIK), looks good, and easy enough, yet not too easy enough. Make sense? Heh...

Well, up until a couple of days ago, ifconfig stopped working for me. Rather.... That command alone gives me the bash: ifconfig: command not found response. However... When I enter in /sbin/ifconfig command, it works fine.

Now, thanks to my friend Google, I know that ifconfig resides in that directory. I know that I can run with the /sbin/ in front of the command, and I can go on my merry way, and live the rest of my life underneath my umbrella of content. But lets be honest. I want it back! Heh

So I'm not sure what else I can give you so that you can just say, "Oh do this, that, and bodaboombadabing, you are back in business!". And all I can speculate, is that something happened to the 'link?' or whatever got debunked. So.... Ok. I'm ranting now. TIA!!!!

=D

Check /sbin dir listed in your path variable

provide output of below command

Code:

echo $USER

echo $PATH

Code:

[shaun@localhost sbin]$ ls

accton                  ip                            multipath.static

addpart                ip6tables                      nameif

adsl-connect            ip6tables-restore              nash

adsl-setup              ip6tables-save                netplugd

adsl-start              ipmaddr                        netreport

adsl-status            ipppstats                      new-kernel-pkg

adsl-stop              iprofd                        nologin

agetty                  iptables                      pam_console_apply

alsactl                iptables-restore              pam_tally

arp                    iptables-save                  pam_tally2

arping                  iptunnel                      pam_timestamp_check

audispd                isdnctrl                      parted

auditctl                isdnlog                        partprobe

auditd                  iwconfig                      partx

aureport                iwevent                        pcbitctl

ausearch                iwgetid                        pccardctl

autrace                iwlist                        pcmcia-check-broken-cis

avmcapictrl            iwpriv                        pcmcia-socket-startup

badblocks              iwspy                          pidof

blkid                  kdump                          pivot_root

blockdev                kexec                          plipconfig

busybox                killall5                      portmap

capiinit                klogd                          poweroff

cbq                    kpartx                        pppoe

cciss_id                kpartx.static                  pppoe-relay

change_console          kudzu                          pppoe-server

chkconfig              ldconfig                      pppoe-sniff

clock                  logsave                        ppp-watch

consoletype            loopctrl                      pvscan

cryptsetup              losetup                        quotacheck

ctrlaltdel              lsmod                          quotaoff

debugfs                lspci                          quotaon

delpart                lspcmcia                      rdisc

depmod                  lsusb                          rdump

dhclient                lvm                            rdump.static

dhclient-script        lvm.static                    reboot

dhcp6c                  MAKEDEV                        request-key

dm_dso_reg_tool        makedumpfile                  resize2fs

dmeventd                mcstransd                      restore

dmevent_tool            mdadm                          restorecon

dmraid                  mdadm.static                  restore.static

dmraid.static          mdassemble.static              rmmod

dmsetup                mdmpd                          rmt

dmsetup.static          mgetty                        rngd

dosfsck                microcode_ctl                  route

dosfslabel              mii-diag                      rpc.lockd

dump                    mii-tool                      rpc.statd

dumpe2fs                mingetty                      rrestore

dump.static            mkbootdisk                    rrestore.static

e2fsck                  mkdosfs                        rtmon

e2image                mkdumprd                      runlevel

e2label                mke2fs                        runuser

ether-wake              mkfs                          salsa

ethtool                mkfs.cramfs                    scsi_id

extlinux                mkfs.ext2                      service

fdisk                  mkfs.ext3                      setfiles

findfs                  mkfs.msdos                    setkey

firmware_helper        mkfs.vfat                      setpci

fixfiles                mkinitrd                      setsysfont

fsck                    mkswap                        sfdisk

fsck.cramfs            mkzonedb                      sgpio

fsck.ext2              modinfo                        shutdown

fsck.ext3              modprobe                      slattach

fsck.msdos              mount.cifs                    sln

fsck.vfat              mount.ecryptfs                start_udev

fstab-decode            mount.ecryptfs_private        sulogin

fuser                  mount.nfs                      swapoff

generate-modprobe.conf  mount.nfs4                    swapon

genhostid              mount.vmhgfs                  sysctl

getkey                  mpath_ctl                      syslogd

grub                    mpath_prio_alua                tc

grubby                  mpath_prio_alua.static        telinit

grub-install            mpath_prio_emc                tune2fs

grub-md5-crypt          mpath_prio_emc.static          udevcontrol

grub-terminfo          mpath_prio_hds_modular        udevd

halt                    mpath_prio_hds_modular.static  udevd.static

hdparm                  mpath_prio_hp_sw              udevsettle

hisaxctrl              mpath_prio_hp_sw.static        udevtrigger

hwclock                mpath_prio_intel              umount.cifs

ibod                    mpath_prio_intel.static        umount.ecryptfs

icnctrl                mpath_prio_netapp              umount.ecryptfs_private

ifcfg                  mpath_prio_netapp.static      umount.nfs

ifconfig                mpath_prio_ontap              umount.nfs4

ifdown                  mpath_prio_ontap.static        unix_chkpwd

ifenslave              mpath_prio_rdac                unix_update

ifrename                mpath_prio_rdac.static        update-pciids

ifup                    mpath_prio_tpc                vboxd

init                    mpath_prio_tpc.static          vconfig

initlog                mpath_prio_weighted            vgchange

insmod                  mpath_prio_weighted.static    vgscan

insmod.static          mpath_wait                    weak-modules

install-info            multipath                      ypbind





[shaun@localhost sbin]$ echo $USER

shaun





[shaun@localhost sbin]$ echo $PATH

/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/shaun/bin

This what you need? =D Thank you by the way!!!!!

Quote:

This what you need? =D Thank you by the way!!!!!

nope dear..

Any way you are loging through non-root user. /sbin dir not listed in non-root user's PATH.

only root or privileged users can run commands of /sbin /usr/sbin and /usr/local/sbin

run below command to verify your path

Code:

for non-root user

$ echo $PATH

/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/home/u1/bin



root user

# echo $PATH

/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

You can execute ifconfig as a user, if you provide the whole path

Code:

/sbin/ifconfig

Code:

[root@localhost /]# echo $PATH

/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/shaun/bin

[root@localhost /]# ifconfig

bash: ifconfig: command not found

Sorry. Thought I was root. Still learning... ;]~ But as so far... I cannot wait to get my new lappy, and straight out of the door, running CentOS, instead of bowing down to WIN7!!! LoL! TIA everyone! =]

Quote:

Originally Posted by sheykh (Post 4070314)

Code:

[root@localhost /]# echo $PATH

/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/shaun/bin

[root@localhost /]# ifconfig

bash: ifconfig: command not found

# prompt display on your screen but i am sure you are login as non-root user.

Quote:

/home/shaun/bin

you are login as shaun user Am i right?

if yes then you have to give full path of command.

Code:

/sbin/ifconfig

Code:

[shaun@localhost ~]$ echo $USER

shaun

[shaun@localhost ~]$ echo $PATH

/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/shaun/bin

[shaun@localhost ~]$ su

Password:

[root@localhost shaun]# echo $USER

shaun

[root@localhost shaun]# echo $PATH

/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/shaun/bin

[root@localhost shaun]#

Yes... I am logged in with my user account shaun (Yea, my real name, hello btw!! LoL!) and then I su to get to root.... So if I am doing something wrong, or not doing it the 'right' way. Please lemme know. Again.... NOOB!!!!! su is all I've learned... So far. *evil grin*

Quote:

Originally Posted by sheykh (Post 4070334)

Code:

[shaun@localhost ~]$ echo $USER

shaun

[shaun@localhost ~]$ echo $PATH

/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/shaun/bin

[shaun@localhost ~]$ su

Password:

[root@localhost shaun]# echo $USER

shaun

[root@localhost shaun]# echo $PATH

/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/shaun/bin

[root@localhost shaun]#

hi shaun:)

if you want to become root just run su command as below

Code:

$ su -

or 

$ su - root

and then check your PATH

Code:

echo $PATH

Code:

[root@localhost shaun ~]# su - root

[root@localhost ~]# echo $PATH

/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

HI! =]

That what you need now? I see :/sbin/: in the $PATH. So, shouldn't su then ifconfig be working? *tear*

Quote:

Originally Posted by sheykh (Post 4070363)

Code:

[root@localhost shaun ~]# su - root

[root@localhost ~]# echo $PATH

/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

HI! =]

That what you need now? I see :/sbin/: in the $PATH. So, shouldn't su then ifconfig be working? *tear*

ok now run ifconfig at shell and see what happen

Code:

# ifconfig

almost....there.....

Code:

[shaun@localhost ~]$ ifconfig

bash: ifconfig: command not found

[shaun@localhost ~]$ su

Password:

[root@localhost shaun]# ifconfig

bash: ifconfig: command not found

[root@localhost shaun]# su - root

[root@localhost ~]# ifconfig

eth0      Link encap:Ethernet  HWaddr 00:0C:29:4F:05:CC

          inet addr:10.11.8.22  Bcast:10.11.8.255  Mask:255.255.255.0

          inet6 addr: fe80::20c:29ff:fe4f:5cc/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:581004 errors:0 dropped:0 overruns:0 frame:0

          TX packets:388944 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:524565816 (500.2 MiB)  TX bytes:306291525 (292.1 MiB)



lo        Link encap:Local Loopback

          inet addr:127.0.0.1  Mask:255.0.0.0

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING  MTU:16436  Metric:1

          RX packets:1239 errors:0 dropped:0 overruns:0 frame:0

          TX packets:1239 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:2082593 (1.9 MiB)  TX bytes:2082593 (1.9 MiB)

Worked. However, I know that su then ifconfig used to work. I know it did. I haven't taken any crazy pills in a couple of weeks (GOTTA get off that stuff!!), but I swear it worked before. And I'm not sure what I did to bork it (I had to have done something...)

Quote:

but I swear it worked before. And I'm not sure what I did to bork it (I had to have done something...)

you can do this way. ( just do this as testing only)

login as non-root user.
open your local profile

Code:

$ vim .bash_profile



PATH=$PATH:$HOME/bin:/sbin <- add /sbin



save file and logout and login user

settings for redhat/centos OS

Hope this help

Best of luck.

Quote:

Originally Posted by sem007 (Post 4070387)

Code:

$ vim .bash_profile



PATH=$PATH:$HOME/bin:/sbin <- add /sbin



save file and logout and login user

That worked like a champ! Didn't need to su. Granted, I see what it is that I did. Basically the same thing as W$ users "paths". Correct? You mentioned that this isn't really a fix, but more a test. Right?