Thanks, Looks like this works. Although I forgot to mention its possible this will occur more than once in the log file. Your solution only outputs the first instance. Any idea if this can be done?
Quote:
Originally Posted by curleb
You'll want to grep -n to identify the line number, and then you could use your line number as a part of a sed script...
Unfortunately this isn't do-able since the errors won't always occur on the same lines in the log file. But, thanks for the insight!^_^
---------- Post updated at 04:11 PM ---------- Previous update was at 04:10 PM ----------
I have this file (below) and need to get out specific data that appears after OSE1_1.FIX, but before OSE1_2.FIX.
Specifically I need to get all of the data after "ROW80_20:", "ROW80_21:", "ROW80_22:" & "ROW80_23:" then I need to do the same for data the appears after OSE1_2.FIX, but before... (2 Replies)
Hi,
I am trying to grep a string which has two words separated by space.
I used a script to grep the string by reading the string in to a variable
command i used in the script is
echo "enter your string"
read str
grep $str <file>
it is working fine when the entered string is a single... (3 Replies)
hi!
i'm trying to get grep to do an exact match for the following pattern but..it's not quite working. I'm not too sure where did I get it wrong. any input is appreciated.
echo "$VAR" | grep -q '^test:]name'
if ; then
printf "test name is not found \n"
fi
on... (4 Replies)
I need to be able to search for a beginning line header, then use grep or something else to get the very next instance of a particular string, which will ALWAYS be in "Line5". What I have is some data that appears like this:
Line1
Line2
Line3
Line4
Line5
Line6
Line7
Line1
Line2
...... (4 Replies)
Hi all, i am new to unix scripting in ksh or any shell for that matter. I have downloaded a xml file from a website and saved on my local harddrive. inside the xml, the same tag is listed multiple times.
<title>Tonight</title>
<title>Thursday</title>
<title>Friday</title>... (6 Replies)
I want to grep some information out of the dmidecode but when I type
dmidecode | grep Memory
I get several instances of the word. Is there a way I can just choose which instance I want to display? (8 Replies)
I want to write the syntax so does not count line with no space.
So currerntly it is showing lines as 5, but i want to show 4.
# cat /tmp/mediacheck | sort -u | grep -vi " " | awk '{print $1}' | wc -l
BA7552
BAA002
BAA003
BAA004 (6 Replies)
Hi,
I want to get the only application name from the server.
Ex:
if i give $ ps -ef | grep bw.
It will show all BW process with entire path. It will little confuse to list out the process. Can anyone have syntax to get only the instance name. I need this for be, hawk,ems also.
Please... (2 Replies)
Hi.
In thread https://www.unix.com/shell-programming-and-scripting/267833-grouping-counting.html rovf and I had a mini-discussion on grep and awk.
Here is a demo script that compares the awk and grep approaches for this single problem:
#!/usr/bin/env bash
# @(#) s2 Demonstrate group... (1 Reply)
I have a file xyz with the following content
PPPL 0123
PPPL 0006
POFT 0923
POFT 1111
WENT 2323
SEND 2345
I also have another file named MasterFile where it contains the above mentioned data million times with different digits at the end for example some times it contains SEND 9999 or WENT... (4 Replies)
Discussion started by: knijjar
4 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)