HI
I am trying to store the output of this awk command
awk -F, {(if NR==2) print $1} test.sr
in a variable when I am trying v= awk -F, {(if NR==2) print $1} test.sr
$v = awk -F, {(if NR==2) print $1} test.sr
but its not working out .
Any suggestions
Thanks
Arif (3 Replies)
Hi unix gurus,
I am trying to store the result of a command into a variable.
But it is not getting stored.
x='hello'
y=echo $x | wc -c
but it is giving the output as 0(zero)
Pls help me its very urgent (7 Replies)
Hi all,
I'm creating a script which uses 'defaults read' to retrieve details from an Info.plist like this;
defaults read "/Path/Contents/Info" CFBundleShortVersionString
This works fine in Terminal and returns the expected values.
Is it possible to use this command in a script, and... (0 Replies)
Hi All,
I am getting the output for the following command when i run it on the unix console.
---------------------------
grep `whoami` /etc/passwd | awk '{print ($1);}' | cut -d ":" -f3
----------------------------
But i made it into a script and tried to print the variable, its... (5 Replies)
I'm sure this is a simple thing but I can't figure it out. In a script that I'm writing, I'd like to be able to store each line of output from "ls -l" into a variable. Ultimately I'd like to end up with something like:
for a in `ls -l`
do something with $a
doneBut that's reading each... (2 Replies)
Hi All,
Hope someone can advise here as I have been struggling to find a syntax that works here. I have tried a stack of combination I have seed in the forums but I think because I have needed to use "" and `` in the statments another method is found.
I am reading in lines with the following... (1 Reply)
My script below seems to be choking because I need the the output of the find command to be stored as a variable that can then be called by used lower in the script.
#!/bin/bash
cd "/resumes_to_be_completed"
var1=find . -mmin -1 -type f \( -name "*.doc" -o -name "*.docx" \)... (1 Reply)
Hi,
My aim is to get the md5 hash of a file and store it in a variable.
var1="md5sum file1"
$var1
The above outputs fine but also contains the filename, so somthing like this 243ASsf25 file1
i just need to get the first part and put it into a variable.
var1="md5sum file1"... (5 Replies)
I have a below syntax its working fine...
var12=$(ps -ef | grep apache | awk '{print $2,$4}')
Im getting expected output as below:
printf "%b\n" "${VAR12}"
dell 123
dell 456
dell 457
Now I wrote a while loop.. the output of VAR12 should be passed as input parameters to while loop and results... (5 Replies)
Discussion started by: sam@sam
5 Replies
LEARN ABOUT XFREE86
truncate
TRUNCATE(1) User Commands TRUNCATE(1)NAME
truncate - shrink or extend the size of a file to the specified size
SYNOPSIS
truncate OPTION... FILE...
DESCRIPTION
Shrink or extend the size of each FILE to the specified size
A FILE argument that does not exist is created.
If a FILE is larger than the specified size, the extra data is lost. If a FILE is shorter, it is extended and the extended part (hole)
reads as zero bytes.
Mandatory arguments to long options are mandatory for short options too.
-c, --no-create
do not create any files
-o, --io-blocks
treat SIZE as number of IO blocks instead of bytes
-r, --reference=RFILE
base size on RFILE
-s, --size=SIZE
set or adjust the file size by SIZE bytes
--help display this help and exit
--version
output version information and exit
The SIZE argument is an integer and optional unit (example: 10K is 10*1024). Units are K,M,G,T,P,E,Z,Y (powers of 1024) or KB,MB,... (pow-
ers of 1000).
SIZE may also be prefixed by one of the following modifying characters: '+' extend by, '-' reduce by, '<' at most, '>' at least, '/' round
down to multiple of, '%' round up to multiple of.
AUTHOR
Written by Padraig Brady.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report truncate translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO dd(1), truncate(2), ftruncate(2)
Full documentation at: <http://www.gnu.org/software/coreutils/truncate>
or available locally via: info '(coreutils) truncate invocation'
GNU coreutils 8.28 January 2018 TRUNCATE(1)