The *.txt glob will be expanded if there are files with the txt extension in the current directory, screwing up the find command.
If find returns too many files, grep/the shell will refuse running and complain about a too large argument list
Also, I'd advise anyone against using backticks and use the $() construct instead, as it's less likely to be misinterpreted, and can be nested multiple times.
Hi Friends,
How can I search all files in all slices on a unix system for a particular string within the file.
e.g search string 'oracle'
Thanks (4 Replies)
I have to search a file in a prticular directory. filename will be passed through command line. The directory may contain subdirectory.
i.e.
suppose directory in /u03/appl (it can hard coded in script). This directory may contain subdirectory.
$ scriptname.sh filename
output should be... (2 Replies)
Hi,
I have following requirement. Pls suggest.
To search a string in a file which is combination of character and number(always 9 digit, but numeric). if found then caputure the exit return code as 0 else 1 , if 0 then next job can be triggerd. If exit code is 1, should return a failure... (10 Replies)
I am new to Unix scripting and would like some help. Here is my scenario:
1) I have a text files that contains two fields: file name and retention period in months:
File1 36
file2 24
File3 12
2) The directory I am searching contains sequential files.
3) I need to be able to take the file name... (10 Replies)
Hi,
I have log file which rolls out every second which is as this.
HttpGenRequest - -<!--OXi dbPublish--> <created="2014-03-24 23:45:37" lastMsgId="" requestTime="0.0333"> <response request="getOutcomeDetails" code="114" message="Request found no matching data" debug="" provider="undefined"/>... (3 Replies)
Hi,
Is there any way to use find command and search only specific subdirectories in a directory.
for example
/home/d1
/home/d2
/home/d3
i want to search in the following directories
/home
/home/d1
/home/d2
i do not want the find command to search the /home/d3 directory. (6 Replies)
Hi,
I have logfile like this..
=== 2014-02-09 15:46:59,936 INFO RequestContext - URL: '/eyisp/sc/skins/EY/images/pickers/comboBoxPicker_Over.png', User-Agent: 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko': Unsupported with Accept-Encoding header
=== 2015-02-09... (8 Replies)
Hi All,
How to search for a string in all the files irrespective of directory.
If I use grep -i 'hello' *.*
It will search for the string hello in the files of current directory.
But I want to check for the string hello in the files of all the directories.
Thanks (4 Replies)
Lets say I have a massive directory which is filled with other directories all filled with different c++ scripts and I want a listing of all the scripts that contain the string: "this string". Is there a way to use a grep search for that? I tried:
grep -lr "this string" *
but I do not... (3 Replies)
Hi All,
I hope somebody would be able to help me.
I would need to search a string coming from a file, example file.txt:
dog
cat
goat
horse
fish
For every string, I would need to know if there are any files inside a directory(recursively) that contains the string regardless of case.... (9 Replies)
Discussion started by: kokoro
9 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)