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-   -   using cut (https://www.linuxquestions.org/questions/linux-newbie-8/using-cut-869101/)

athrin 03-17-2011 12:48 AM
using cut
 
i want to cut
MemTotal: 254788 kB
into
254788
can someone help me with that

corp769 03-17-2011 12:50 AM
Code:
echo "MemTotal: 254788 kB" | cut -c 11-16
That should do it. Replace whatever command need be in place of echo. Note: I am on windows right now at work, so you might have to edit the numbers to get the correct output.

Cheers,

Josh

Telengard 03-17-2011 12:56 AM
I would use

Code:
~$ echo 'MemTotal: 254788 kB' | cut -d ' ' -f 2
254788
~$
This way it works even if the length of the string changes.

athrin 03-17-2011 12:57 AM
aaa.. i want to cut it without using echo.
if i use
cat /proc/meminfo | grep MemTotal | cut -d : -f2
254788 kB will shown and i also want to remove the kB

corp769 03-17-2011 12:58 AM
Quote:
Originally Posted by Telengard (Post 4293431)
I would use

Code:
~$ echo 'MemTotal: 254788 kB' | cut -d ' ' -f 2
254788
~$
This way it works even if the length of the string changes.
I didn't know that, thanks.

Telengard 03-17-2011 01:11 AM
Quote:
Originally Posted by athrin (Post 4293433)
aaa.. i want to cut it without using echo.
if i use
cat /proc/meminfo | grep MemTotal | cut -d : -f2
254788 kB will shown and i also want to remove the kB
I see why. cut isn't very intelligent about field separators. Try this instead:

Code:
~$ cat /proc/meminfo | awk '/MemTotal/ {print $2}'
1033828
~$
Quote:
Originally Posted by corp769 (Post 4293436)
I didn't know that, thanks.
You're welcome of course.

athrin 03-17-2011 01:13 AM
Quote:
Originally Posted by Telengard (Post 4293445)
I see why. cut isn't very intelligent about field separators. Try this instead:

Code:
~$ cat /proc/meminfo | awk '/MemTotal/ {print $2}'
1033828
~$


You're welcome of course.
thanks for your help

Telengard 03-17-2011 01:18 AM
Quote:
Originally Posted by athrin (Post 4293446)
thanks for your help
You're very welcome. I'm just glad to know you found my response helpful.
;)


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