...for the agama's input "dv01:at01,at05:xxxx,at02:at04" ...
Oops. I hadn't realised that I had left in that :xxxx. I was using that as a test to ensure that if there were such a pattern that it would do the job in addition to the original request.
Quote:
Originally Posted by J-Man
But I also found this works pretty good.
Yep, that'll work. Your need (something quick to pass over a static set of data, or something that will be used on an ongoing basis) will likely influence what you write in the future. I prefer generic solutions especially if the script will be used on an ongoing basis. Your alternative would be very quickly implemented if you just needed it for a one time shot.
Hello,
I have the following line in one of my shell scripts. It works fine when the search string($SERACH_STR) exists in the logfile($ALERTLOG) but if the search string does not exist this line errors out at run time. Is there a way to make this line return 0 if it is not able to find the... (4 Replies)
Write a sed script to extract the year, rank, and stock for the most recent 10 years available in the file top10_mktval.csv, and output in the following format:
------------------------------
YEAR |RANK| STOCK
------------------------------
2007 | 1 | Exxon... (1 Reply)
Okay, title is kind of confusion, but basically, I have a lot of scripts on a server that I need to replace a ps command, however, the new ps command I'm trying to replace the current one with pipes to sed at one point. So now I am attempting to create another script that replaces that line.
... (1 Reply)
Hi guys,
I'm currently trying to understand a piece of shell script and it has some sed commands. I've been looking through sed tutorials to figure out what it does but still no luck :confused:
Can any of you guys tell me what this particular command does?
sed -i '1i\.options' a/*
... (1 Reply)
Hi, I'm trying to find the first field in a text file with the below sed command but it doesn't seem to be correct for running on Solaris.. It has no problem running on AIX. Anyone got a suggestion what the problem is?
sed 's/^\(\+\) /OK/'
The eventual goal is to separate the columns in a... (5 Replies)
for j in $(cat ${list_B})
do
to_replace_2=$(grep $j ${useralias}_2)
sed "s/^${j}/${to_replace_2}/p" ${entries} > ${entries}_2
mv ${entries}_2 ${entries}
done
Hi,
I've the above sed command running in a script. Its basically looping through a file and replacing its beginning of line... (8 Replies)
Hi All,
I am trying to replace a string in a oracle LDT file file extension .ldt.
I am using the following command:
sed "s/Test Number Viewer/Test Number 1/g" TEST_LIEN_FORM.ldt > TEST_LIEN_FORM.ldt.tmp
mv TEST_LIEN_FORM.ldt.tmp TEST_LIEN_FORM.ldt
But after the command, the file... (2 Replies)
Hey all,
so I've been experimenting with SED today, no experience before today, so if you're not patient, stop reading now! :P
I will attempt to explain this as simply as possible, without having to post massive walls of shitty code. Basically, I've created a small sed script to go through an... (9 Replies)
Hi,
I am running a script sample.sh in bash environment .In the script i am using sed and awk commands which when executed individually from terminal they are getting executed normally but when i give these sed and awk commands in the script it is giving the below errors :-
./sample.sh: line... (12 Replies)
How to work x in sed command?
I know x command is swaps the contents of pattern space and hold space. But i am unable to understand it's working? (4 Replies)
Discussion started by: Vartika18
4 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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 v5.8.4 2005-05-03 SHELL-QUOTE(1p)