Hi,
At the moment, I have inserted an actual filename to conduct searches through it etc... Instead, I want the user to choose a filename and then do the searches against this file, instead of already having specified the file in the code. How would I do this? I tried doing the following, but it... (5 Replies)
Hello,
I want to write a ksh script about changing UID and changing group with GID. There are multiple servers i want to perform that job.
linux1
linux2
linux3
linux4
linux5 ......
.
.
.
.
.
1.) How can i enter "password" in script rather asking me?
I was trying this...
ssh... (2 Replies)
Dear all,
I want to change all the File name in a folder from File1.txt to
File1YYYYMMDD.txt where YYYYMMDD is the date of the file is renamed.
I have used the following scripts:-
********************************************************
#!/bin/ksh
A=`date +"%d%m%Y"
for in * ... (2 Replies)
Hi guys,
I desperately need your help on my problem:-
I got a folder in my directory that has many files in it. Most of the file's name is starting with certain prefix. Eg: ABC, CDE, EFG, etc. I only want to change file name that is starting from certain prefix and the rest I want them to... (1 Reply)
Hi, I want to change on a file this line:
vif =
into:
vif =
But there are some conditionals:
1. last part '] of the original line after 00:16:3E:CE:23:14' ] may vary to 00:16:3E:CE:23:14' ] or 00:16:3E:CE:23:14 ' ]
2. The second mac adrress of the line I need,... (4 Replies)
i have a file a.txt contents as 1,2,3,4,......etc...in a single line, i want to write to another file in rows as
1
2
3
4
5
can u help?
i do not know the length of a.txt (4 Replies)
Write a shell program to replace the starting alphabet "a" with "k" for the file names in the current directory.
Note : Change only the file names starting with "a". Rest of the file names remains unchanged.
Homework. Replies deleted. Closed. (0 Replies)
Hi,
I have several text files each containing some data as shown below:
File1.txt
>DataHeader
Data...
Data...
File2.txt
>DataHeader
Data...
Data...
etc.
What I want is to change the 'DataHeader' based on the file name. So the output should look like:
File1.txt
>File1
... (1 Reply)
i have a requirement where i needed to change variable values in a properties file(first file) whenever there is change to Release details file(second file). My question is do i have to create a daemon process that always checks the modified time/inode change of the second file and then change the... (1 Reply)
Hi,
I have used expdp for datapump. The .dmp file is created by the "oracle" user.
my requirement is to make a zipped file of this .dmp file.
What i am trying to do is change the permissions of this .dmp file from 0640 to 0644 and then do a gzip and zip it. Is there any way i can change... (3 Replies)
Discussion started by: qwertyu
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)