|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
Command substitution inside of a variable expression (AIX, KORN)
Post 302761159 by Subbeh on Friday 25th of January 2013 08:39:43 AM
01-25-2013
|
|
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I know this script is crummy, but I was just messing around.. how do I get sed's insert command to allow variable expansion to show the filename?
#!/bin/bash
filename=`echo $0`
/usr/bin/sed '/#include/ {
i\
the filename is `$filename`
}' $1
exit 0 (8 Replies)
Discussion started by: glev2005
8 Replies
2. Shell Programming and Scripting
When script is running you only see when some of the commands are not successfull.
Is there a way to see which command are executed and to show the substitution of variables as every line is executed ? (3 Replies)
Discussion started by: gr0124
3 Replies
3. Shell Programming and Scripting
For example I have variable like below
echo $OUTPUT
/some/path/`uname -n`
when I try to use the variable OUTPUT like below
cd $OUTPUT or cd ${OUTPUT}
I am getting bad substituion error message
$ cd $OUTPUT
ksh: cd: bad substitution
$ cd ${OUTPUT}
ksh: cd: bad substitution
... (1 Reply)
Discussion started by: rajukv
1 Replies
4. Shell Programming and Scripting
Hi Jim,
The following script is in working state. But i m having one more problem with awk cmd. Could you tell me how to use any variable inside awk or how to take any variable value outside awk.
My problem is i want to maintain one property file in which i am declaring variable value into that... (12 Replies)
Discussion started by: Ganesh Khandare
12 Replies
5. Shell Programming and Scripting
Hi,
I am trying to do the following thing
var='date'
$var
Above command substitutes date for and in turn runs the date command and i am getting the todays date value.
I am trying to do the same thing as following, but facing some problems,
unique_host_pro="sed -e ' /#/d'... (3 Replies)
Discussion started by: gvinayagam
3 Replies
6. Shell Programming and Scripting
Hello All,
I don't write scripts very often, and in this case I am stumped, although it may be a bug in the version of bash I have to use (it's not my system).
I want to extract a specific string snippet from a block of text (coming from a log file) that is dependent on a bunch of other... (1 Reply)
Discussion started by: jaimielives
1 Replies
7. UNIX for Dummies Questions & Answers
Hello people.
Part of my script:
SUBSETID=`echo $PMFILE |sed 's/pmresult_//' | sed 's/_*//'`
MAPFILE=`find /huawei/cell /huawei/nodeb /huawei/rnc -name 'mapping_$SUBSETID.txt' |grep -v backup`
Unfortunatelly variable $SUBSETID in the MAPFILE declaration will not return the... (3 Replies)
Discussion started by: drbiloukos
3 Replies
8. UNIX for Dummies Questions & Answers
If I execute the following line of code:
echo "*"
I get a list of files in the current directory.
What if all I wanted to do was display the asterisk itself? What does the code have to look like so all I get is an asterisk?
Thanks ahead of time for your assistance
----------... (3 Replies)
Discussion started by: Wreckoning
3 Replies
9. Shell Programming and Scripting
Is it possible to store a command inside a variable?
i want this piece to be stored inside a variable, so i can use it later in a different command
$u | cut -d " " -f 2
var="$u | cut -d " " -f 2"
eval $var
I tried to use eval but I receive this error:
-f 2: command not found
... (5 Replies)
Discussion started by: velos
5 Replies
10. Shell Programming and Scripting
Hi, I am new in scripting, and I am currently working on a script that will look for other files in a certain directory and exclude some file type.
this works fine:Find_File2Exclude=`find ${paths} -maxdepth 1 -type f \( ! -iname '*.out' ! -iname '*.auc' ! -iname '*.cps' ! -iname '*.log' ! -iname... (4 Replies)
Discussion started by: kedd05
4 Replies
LEARN ABOUT OSX
pwd
PWD(1) BSD General Commands Manual PWD(1) NAME
pwd -- return working directory name SYNOPSIS
pwd [-L | -P] DESCRIPTION
The pwd utility writes the absolute pathname of the current working directory to the standard output. Some shells may provide a builtin pwd command which is similar or identical to this utility. Consult the builtin(1) manual page. The options are as follows: -L Display the logical current working directory. -P Display the physical current working directory (all symbolic links resolved). If no options are specified, the -L option is assumed. ENVIRONMENT
Environment variables used by pwd: PWD Logical current working directory. EXIT STATUS
The pwd utility exits 0 on success, and >0 if an error occurs. SEE ALSO
builtin(1), cd(1), csh(1), sh(1), getcwd(3) STANDARDS
The pwd utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). BUGS
In csh(1) the command dirs is always faster because it is built into that shell. However, it can give a different answer in the rare case that the current directory or a containing directory was moved after the shell descended into it. The -L option does not work unless the PWD environment variable is exported by the shell. BSD
April 12, 2003 BSD