in a text " Korn Shell Unix programming Manual 3° Edition"
i have found this sintax to declare a compoud variable:
variable=(
fild1
fild1
)
but this sintax in ksh and sh (HP-UNIX) not work...
why?? exist another solution for this type of variable ??? (5 Replies)
I am using two shell scripts a.ksh and b.ksh
a.ksh
1. Sets the value
+++++++++++++++++
export USER1=abcd1
export PASSWORD=xyz
+++++++++++++++++
b.ksh
2. Second scripts calls sctipt a.ksh and uses the values set in a.ksh and pass to an executable demo... (2 Replies)
Hi All-
First time using iSql.
I have 4 query files - some have more than 1 line of sql statements
After a bit of research it appears I can just use the -i command and specify the input file.
Questions:
Does it matter that there are multiple queries in each file? Do I need to have... (3 Replies)
I'm writing a KSH script that will get a file on the command line (such as input.txt), and in this file there is on number per line. The program needs to take the file, read each and determine the lowest number in the file. I currently have a while loop setup that will correctly out put every... (8 Replies)
Hi
I have the following block of code in korn shell and don't now how to refer to variable `print variable1.$dvd` ?
---
integer dvd=4
integer number=0
while (( dvd!=0 ))
do
print "Iteracja numer : $dvd"
print "$_" #it refers to $dvd var but want to refer... (3 Replies)
Hi,
In shell script, I have a variable var = xyz, inn, day, night, calif ....n and I would like to read them in to var1 = xzy, var2 = inn, var3= day, var4 = night....var.
probably in a loop. I would like to read the variables until end of the line. Comma is the delimiter and there's no comma at... (3 Replies)
hello,
i have a variable which should have following content :
var="value1"
or
var="value2"
or
var="value2:*" # example: value2:22
how can i check :
- if the content is ok (value1 / value2* )
- the two options of "value2"
when content is example "value2:22" , i want to split... (3 Replies)
I'm using korn shell and I am wondering if it's possible to use a parameter passed into a function to build a variable name in a configuration file. I have the function in one source file, I'd like to have a global configuration file instead of hardcoding logins to each script.
So I have a... (7 Replies)
Hi
I am using two shell scripts which are running on the system simultaneously. And in one of the script i am exporting an Integer Variable.
Now i want to use the variable in another script. But i cannot run the first script in the second as the first script has many other functions which... (3 Replies)
Discussion started by: Ajesh
3 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)