If you have something to match and something to exclude, you can achieve this in two connected commands:-
The v flag is a negation, so the above will first find all records that match the condition (i.e. contain a) then count all records that do not match the second condition h
Hi there,
I have a file with 1800+ lines and all are something like this:
drwx--x--x 12960 4096 Oct 6 2006 palfvoet
drwx--x--x 67205 4096 May 9 05:21 pallsopp
drwx--x--x palmgren 4096 Oct 6 2006 palmgren
now, as you... (3 Replies)
Hi,
I search for the string below which contains a single quote,
some text '/home/myuser
in the file myfile.txt as another user with the grep command as follows
su - myuser -c "grep 'some text \'/home/myuser' myfile.txt"
I also tried using two backslashes
su - myuser... (6 Replies)
Whats the wrong with the following code:
if ; then
echo "File XYZ Exist"
if ] ; then
echo "File abc is not empty, script continues"
else
echo "File abc is empty, script aborts"
exit 0
fi
else
echo "File XYZ does not exist"
exit 0
Error: testscript.ksh:... (3 Replies)
spath="/home/user/k/${1}"
dpath="/home/user/seq/Nov17/${1}"
cd $dpath
ls -1 $spath > list
c=1
while read list
newlist=`echo $list | sed 's/.gz//' `
newnewlist=`echo $newlist | sed 's/.fastq//' `
do
echo $c
echo $list
c=$(($c+1)) (6 Replies)
Hi everyone, thank you so much for reading.
I built a user reference page from /etc/password for a class project. Now I need two shell scripts: 1) Add names to the reference page 2) Delete names from the reference page. I know grep -v is involved somehow and some piping but I am super stuck.
... (1 Reply)
So I have Ubuntu running on a sheevaplug develop kit, but the damn kernel thing doesn't come with /dev/tun enabled. It was suggested that I look into using module assistant to compile & get this set up but I'm having issues.
Linux ubuntu 2.6.39.4 #2 PREEMPT Fri Aug 5 19:05:11 MDT 2011 armv5tel... (4 Replies)
I am trying to make a script that has grep finding lines that I get from the cat command, that start with something and end with an argument. I can get the first part, but whenever I try to add on the part that looks at the end of the line too, it stops working. Any ideas why? Here is my script:
... (11 Replies)
PH=(6H 0 0 JD 9S 0 KD 0) #input from .txt file
In the above array, I am trying to get the computer to tell me at what indices the non-zeros are at.
I don't understand why this doesn't work...
grep -v -b "0" ph.txt > position.txt
Isn't grep -v supposed to show non matches in Bash?... (2 Replies)
Good Morning,
i ran into some trouble this morning while 'improving' my monitoring stuff. i would like to get a warning when the number of mails sent (outbound) by postfix is above a certain number. so far, so easy. to test that i simply put
cat /var/log/mail.info | grep 'to=<' | grep -v -e... (1 Reply)
Discussion started by: Mike
1 Replies
LEARN ABOUT LINUX
zegrep
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 invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code:
(-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, 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 the GREP environment variable is set, zgrep uses it as the grep program to be invoked.
EXIT CODE
2 - An option that is not supported was specified.
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)ZGREP(1)