Dear friends,
i am writing sh shell script
I have a file containing binary data.
like this.
010101010101010101101010101010100001010101010101001.
i want to read some particular bits and convert it into decimal valuse.
example.
1.first i want to read 5 bits and convert it into... (1 Reply)
Hello,
I want to convert MM DD YYYY date format to MM-DD-YYYY format.
For exemple:
I have to convert Nov 28 2005 to 28-11-2005.
Thenks for youf help.
DAFI (2 Replies)
Is there any direct way in shell to convert exponential to other formats. For example 1.5e-07 to 0.150u. Or does shell support this microns, nano meter notations? (1 Reply)
Hi
I want to convert MAY 05 2005 01:15:00PM date format to 2005/05/05 01:15:00PM .
CAn somebody suggest me a code ,I am new to unix shell programming.
Thanks
Arif (21 Replies)
Hi,
I have a requirement to capture file time stamp and compare with current system time. I am using HP-AUX K-shell.
Below is what i have done
Getting current date into myfile2
---------------------------------
date +%Y%m%d%H%M%S > myfile2
20091110132800
Getting the file date into... (5 Replies)
Hi all,
I have one libxxx.so file ( which I got from a third party ). We use shared library libxxx.sl . Is there any way to convert the .so file to .sl file ?
Thanks in advance
- M (3 Replies)
Trying to convert dates using a Perl Script but it has to accept formats like
3 letter month, day and year like Nov 02 2010 or 1/4/11 or 21 Feb 2011 and have it convert to something like October 20, 2011. Any ideas? (2 Replies)
Discussion started by: reduxeffect81
2 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)