Hi !
I have the following situation -
##First variable
variableA=JOB_A
##bunch of other variable
JOB_A_RESTART=cleanupJobA
JOB_B_RESTART=cleanupJobB
JOB_C_RESTART=cleanupJobC
now i need a script which would -
1. take the first variable
2. create a new variable name... (2 Replies)
Hello,
If anyone could help me out with this, it would be greatly appreciated. I am trying to dynamically create files and print to them.
Here is the code I have to so far. thanks.
if (n < 5000 )
{
# do nothing
}
else
{
n = 0;
filenum++;
# out = ("out" filenum);
}
... (1 Reply)
Hi All,
I want to create a shell script which dynamically create text files. i am using the following script
$i=1
while
do
cat > test_$i.txt
done
but while running the script it was stopping(the cursor not going to next step, i have to enter ctrl+c to make it stop). it is creating only... (2 Replies)
I have 3 variables with different information.. they look like this (row-wise aswell):
Variable1 =
Roland
Kalle
Dalius
Variable2 =
ake123
ler321
kaf434
Variable3 =
Richardsen
Sworden
Lokthar
How can I sort them by variable3 alphabetical and add them into the same output so... (0 Replies)
i'm trying to write a script that has 2 variables, and uses the 1st variable as a number and the 2nd a name to create directories. so if you typed in ./myscript 5 week, it would create 5 directories named week1 - week5. whenever i run this, i get an error message saying week5 already exists, so i... (3 Replies)
Hi,
For one of the project which i am working on i need to write a cpp code such that it will create the structure dynamically instead of reading it from header file.
For example we have a program which is reading a binary file according to the structure mentioned in header file.
But we... (0 Replies)
I am writing some scripts using bash and am wondering if there is a better way to perform the following set of formatting variables.
s1=" "
s2=" "
s3=" "
s4=" "
s5=" "
s6=" "
s7=" "
s8=" "
frmt_titl="${bYl}%s${nClor}\n"
frmt1_titl="${s1}$frmt_titl"... (10 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Here is what I am supposed to do, word for word from my assignment page:
1. Create/modify and print a... (2 Replies)
Not sure how to do the following, but any help would be appreciated.
Has to be done using C shell (sorry about that).
I have about 300 files that I need this done for, but I am only going to give one example. I will just need to know how to execute your solution through some type of loop to get... (2 Replies)
Hi all,
I have a PLSQL script which has a IN list where it takes some ids as input. For example
SELECT * FROM EMPLOYEE WHERE EMPLOYEE_ID IN (comma separated list )
I want to run this quest inside a shell script but I would like to prepare the IN list dynamically where the employee ids... (1 Reply)
Discussion started by: LoneRanger
1 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)