---------- Post updated 08-11-09 at 12:00 AM ---------- Previous update was 08-10-09 at 11:59 PM ----------
Quote:
Originally Posted by Smiling Dragon
Wouldn't that just put the output from the ls into the variable, then try to run it (ie execute something like "-rw-r--r--")?
Yeah, that would capture the output from 'ls -l' into a variable. I found many hits for doing that, but unfortuantely not the opposite which is what I wanted to accomplish
Hi,
I'm trying to assign the output of a command to a variable and then concat it with another string, however, it keeps overwriting the original string instead of adding on to the end of the string.
Contents of test.txt --> This is a test
var1="`head -n 1 test.txt`"
echo $var1 (This is a... (5 Replies)
I have the sql file cde.sql with the below contents:
abcdefghij
abcwhendefothers
sdfghj
when no one else
when others
wwhen%others
exception when others
Now I want to search for the strings containing when others together and ceck whether that does not occur more than once in the... (2 Replies)
hi,
I want to assign find command result into some temporary variable:
jarPath= find /opt/lotus/notes/ -name $jarFile
cho "the jar path $jarPath"
where jarPath is temporary variable.
Can anybody help on this.
Thanks in advance
----Sankar (6 Replies)
When I run time -p <command>, it outputs:
real X.XX
user X.XX
sys X.XXwhere X.XX is seconds. How I can take just that first number output, the seconds of real time, and assign that to a variable? (9 Replies)
First, this is bash (3.2.17), on a Mac, 10.5.7.
What I'm trying to do is look at a list of users, and check to see if each exists. If they do, do some more stuff, if they don't, drop them into an error file.
So, my user list is:
foo - exists
bar - does not exist
blah - does not exist
... (2 Replies)
Hello
I am using unix CLI commands for the Synergy CM software. The command basically searches for a folder ID and returns the names of the projects the folder sits in. The result is assigned to a variable:
FIND_USE=`ccm folder -fu -u -f "%name"-"%version" ${FOLDER_ID}`
When the command... (6 Replies)
Hi folks.
I have this variable called FirstIN that contains something like this: 001,002,003,004...
I am trying to assign the content of this variable into ModifiedIN but with the following format : 001 002 003 004...(changing the commas for spaces)
I thought about using sed but i am not... (17 Replies)
my script is some thing like this
i11="{1,2,3,4,5,6,7,8,9,10,11,}"
echo "enter value"
read value ..............suppose i11
x="$value"
echo "$($value)" .............the echo should be {1,2,3,4,5,6,7,8,9,10,11,}
but its showing "i11" only.
plz help me out to get desired... (10 Replies)
Hi I have a text file with 2 values and I am trying to assign each value to a variable and then write those to text files.
So if the textfile is data.txt with 2 values x and y
I want to assign mean=x, and stdev=y and then write these out in text files alongwith the id ($id has already been... (6 Replies)
Hi,
I'm writing a script that connects through ssh (using "expect") and then is supposed to find whether a process on that remote machine is running or not. Here's my code (user, host and password are obviously replaced with real values in actual script):
#!/usr/bin/expect
set timeout 1... (3 Replies)
Discussion started by: oseri
3 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)