02-11-2009
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I'm trying to figure out how to build a small shell script that will find old .shtml files in every /tgp/ directory on the server and delete them if they are older than 10 days...
The structure of the paths are like this:
/home/domains/www.domain2.com/tgp/
/home/domains/www.domain3.com/tgp/... (1 Reply)
Discussion started by: Neko
1 Replies
2. Solaris
Hi,
Under my parent diectory I have directory named "Response" in many of its subfolders. I am interested to see all files with extention .pro in Response Directory. I am giving following command -
find . -name "Response" -type d | xargs -i ls -lrt {}/*.pro
but it is not giving result.
... (3 Replies)
Discussion started by: sanjay1979
3 Replies
3. Shell Programming and Scripting
Hi
I am having a csv file in which lots of data are available wherein i need to find a particular kind of data and replace it with null value.
here is the sample data..
I need to find the string starting with 404-064- and up to the first space i have to remove the data and keep the... (4 Replies)
Discussion started by: aemunathan
4 Replies
4. UNIX for Dummies Questions & Answers
Please help with the following command
tail -f /appdata/logs/alert_audit517.txt | grep "Sep 02"
The problem I have is with the file name "alert_audit517.txt". The 3 digit number at the end of the file name changes, so I need the file name to use a wildcard. Ive tried alert_audit***.txt, but... (5 Replies)
Discussion started by: robertson1995
5 Replies
5. Shell Programming and Scripting
I have a script to fix permissions which is made up of blocks like:
FS_ROOT=/home/shared/Photos
FS_EXCLUDE=( \( -path */.webviews -o -path */.thumbnails \) -prune -o )
find $FS_ROOT ${FS_EXCLUDE} -type d -not -perm 2770 -exec chmod 2770 "{}" \;
That fragment works as expected, but no matter... (3 Replies)
Discussion started by: mij
3 Replies
6. Shell Programming and Scripting
I want to look if there is any file inside a specific directory which was modified before 2 days.
I wrote the find command, but the problem is there is one directory and that is a random directory generated by unix, so not sure on how to code for that on the find command.
find... (5 Replies)
Discussion started by: srini0603
5 Replies
7. Shell Programming and Scripting
Hello,
I am fairly new to Linux in general and I am trying to use SED to make some replacements in a file. Below is sample of what the file is like.
<Grouping id="024"><Source>ABC</Source><GroupingKey>000000000816</GroupingKey></Grouping><Grouping... (9 Replies)
Discussion started by: runforfun7
9 Replies
8. UNIX for Dummies Questions & Answers
HI Guys,
I hope you are well. I am trying to write a script that gets executed every time i open a shell (cshell). I have two questions about that
1) I need to enter these commands
$ echo $DISPLAY
$ setenv $DISPLAY output_of_echo_$display_command
How can i write a... (2 Replies)
Discussion started by: kaaliakahn
2 Replies
9. UNIX for Advanced & Expert Users
Hi All
I am using GNU/Linux
This is regarding the get command to retrieve files (filename with wild card characters) from remote server.
I thought Get command can retrieve only 1 file irrespective of the files it has on the remote server And it is the function of mget to retrieve all... (7 Replies)
Discussion started by: sparks
7 Replies
10. UNIX for Beginners Questions & Answers
HI there,
I am trying to find and replace with wildcard with
data
chr1 69511 69511 A G 1/1:0,34:791,78,0:78:34 0/1:55,60:1130,0,1513:99:116 1/1:0,28:630,63,0:63:28 0/1:0,34:626,57,0:57:34
To this
chr1 69511 69511 A G homo hetero homo hetero
Where I find and replace 0/1 with... (3 Replies)
Discussion started by: daashti
3 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)