04-23-2006
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I'm new to unix scripting. How would I go about pulling the first 3 characters from a variable in ksh and storing in another variable? Thanks. (9 Replies)
Discussion started by: steve6368
9 Replies
2. Shell Programming and Scripting
Hi,
Is there any way to convert a string into an array in KSH? In other words I want to split the string like this:
STRING="one two three four"
into an array of 4 values splitting on white space. The array should be similar to the one that would be created with the following command:
... (3 Replies)
Discussion started by: piooooter
3 Replies
3. Shell Programming and Scripting
Hello,
I have a paramter $param consisting just of two literals and want to split it into two parameters, so I can combine it to a new parameter <char1><string><char2>, but the following code didn't work:
tmp_PARAM_1=cut -c1 $PARAM
tmp_PARAM_2=cut -c2 $PARAM... (2 Replies)
Discussion started by: ABE2202
2 Replies
4. Shell Programming and Scripting
Hi,
I have a file called files.txt which contains data like
http://abc.xyz.com/ghi/klm/nop/qrs/tuv/wxyz/
There are multiple lines like the above in this file.
In .sh script, I would like to read this file, split each line, and store the variable of "qrs" and "wxyz" in separate variables.
... (3 Replies)
Discussion started by: archana.n
3 Replies
5. Shell Programming and Scripting
I have a problem which I would like to solve by using UNIX power and inspired minds around world. Here is the problem
I have a text file and it has data as follows
1X.....................1234567890123456789T1234598765XT1 (header)
1Z01............(sub HEADER)
P100001............
Q1........... (4 Replies)
Discussion started by: ask.chowhan
4 Replies
6. UNIX for Dummies Questions & Answers
Hi Friends ,
I want to know how to format the output for the following:
i searched in the forum and couldnt get the exact requirement.
Thanks in advance . (2 Replies)
Discussion started by: i150371485
2 Replies
7. Shell Programming and Scripting
Hi,
How to set as variable from sql output.
Query:
select aa.serial, ao.name from ann_amit aa JOIN ann_object ao on (aa.classid=ao.classid);
I got two values from aa.serial and ao.name, I wanna make two different variable for aa.serial and ao.name.
The value of aa.serial should be in... (2 Replies)
Discussion started by: KarthikPS
2 Replies
8. Shell Programming and Scripting
KSH
HP-SOL-Lin
Cannot use xAWK
I have several strings that are quite long and i want to break them down into smaller substrings.
What I have
String = "word1 word2 word3 word4 .....wordx"
What I want
String1="word1 word2"
String2="word 3 word4"
String3="word4 word5"
Stringx="wordx... (5 Replies)
Discussion started by: nitrobass24
5 Replies
9. Shell Programming and Scripting
Hi,
sry for poor english
I have a group of hex number as : 4D40:4D42
I want so split this group in a list as :
4D40,4D41,4D42
i don't know how i can do this in ksh
Thanks (5 Replies)
Discussion started by: jocazh
5 Replies
10. Shell Programming and Scripting
Hi. I'd like to remove all values in a string variable that also exist in a second variable. What is the appropriate approach to take here? I can use a 'For' loop and check each element and then populate a new string. But is there a cleaner, simpler way?
E.g. I have the following 2 variables ... (19 Replies)
Discussion started by: user052009
19 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)