Trying to embed a pipe with a variable IN a variable
Hey all,
I've tried this for quite some time now and haven't figured it out... I was hoping one of you shell scripters could help a newbie out
I am trying to take the 1st parameter of my script and use it as the search pattern for my for loop
Code:
#!/usr/bin/sh
set -vx
REGEX=$1
GREP="| grep $REGEX" <-- I can't seem to get the syntax correct here
for i in `ls -l "$GREP"| awk '{ print $5 }'`
do
if [ ${total} -eq 0 ]; then
total=$i
else
total=`expr $i + $total`
fi
done
final=`expr $total / 1024`
echo $final in KB
Thanks a bunch guys; anyone know of any good fundamental scripting sites for shell?
Last edited by Scott; 05-27-2010 at 08:23 PM..
Reason: Code tags, please...
Hi,
haven't found anything about this through searching, so may be a new topic:
when doing this:
set -o nounset
set -o errexit
find . -name "*.lib" | while read library; do
echo ${libary}
done
echo "after while"
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something like this should work, but I have somewhere the wrong sytanx. something with the linebreak goes wrong:
sed "2i\\${n}Category:$cat\n"
Sample:
Titel Blahh Blahh abllk sdhsd sjdhf
Blahh Blah Blahh
Blahh
Should look like... (2 Replies)
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Hi all,
I have a variable say var1 (output from somewhere, which I can't change)which store something like this:
echo $var1
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I mean do this in a... (1 Reply)
Hi ,
I would like to assign command (with pipe) output to a variable. The code is as follows. The goal of the code is to get the last folder folder with a particular name pattern.
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Hi,
I am trying to run this command:
ED_CMD="$Access_OPS $ED_Logs_Dir/access | $lgrep -v $Access_Err"
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However, i am getting an error "Failed to open |: Broken pipe at "
My question is how to put a pipe within a variable.
Thanks. John. (4 Replies)
Hi!
If I'm trying something like:
echo "hello world" | myvar=`awk -F "world" '{print $1}'`
echo $myvar
myvar is always empty :confused:
I googled for houres now and don't understand why it isn't working...
Trying it in normal bash.
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Discussion started by: Aurimas
3 Replies
LEARN ABOUT OPENDARWIN
zgrep
ZGREP(1) General Commands Manual ZGREP(1)NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci-
fied, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and
fed to grep.
If zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep uses
it as the grep program to be invoked. For example:
for sh: GREP=fgrep zgrep string files
for csh: (setenv GREP fgrep; zgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)ZGREP(1)
05-27-2010
Trying to embed a pipe with a variable IN a variable
