Sponsored Content
Top Forums Shell Programming and Scripting [Solved] Value of a variable is not recognised for commands comes from external file Post 302569688 by rbalaj16 on Tuesday 1st of November 2011 09:13:27 AM
Old 11-01-2011
I am not using single quotes.

I have also tried with double quotes. still it is not working as expected.
echo $PWD
echo "$PWD" #these two i tried. no luck.

external file has line as below

PRI#echo $PWD

from this i am getting only the exact command and storing it in a variable and executing it.

export command=`echo $line | cut -d '#' -f2,3,4'
$command

PS: i am able to execute other commands properly from this file. only commands which has some variables present are not working.
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Getting category when given the variable from external file to shell script

Hi, I have a script that interacts with a config file in the format: file1.txt file2.txt file3.txt file4.txt file5.txt file6.txt I would like to return the Category, when given the file name. (11 Replies)
Discussion started by: MoreCowbell
11 Replies

2. Web Development

cgi script and external UNIX commands (like swadm)

Hi, I am trying to implement a server monitoring dashboard using cgi scripting. I am planning to run the necessary unix scripts from the web page using cgi. This method works fine for standard unix commands but I am unable to run some external unix commands (like swadm show_processes, swadm... (9 Replies)
Discussion started by: jofinjoseph
9 Replies

3. Shell Programming and Scripting

[solved] how to get specific env variable values into a file

greetings! how do i get an env variable that looks like this when echoed: into a file that looks like this: keeping in mind that the two constants are the fields from the env variable will always be in odd positions of the string that need to go into the file AND they will always start... (3 Replies)
Discussion started by: crimso
3 Replies

4. Shell Programming and Scripting

[Solved] problem - connecting code with external file

hello. this is the code #!/bin/sh total1024=0 total2048=0 total8192=0 if ; then if ; then while read variable do if ; then total1024=$(( $total1024 + 1 )) fi if ; then total2048=$((... (4 Replies)
Discussion started by: Telis
4 Replies

5. Shell Programming and Scripting

storing a value from another file as a variable[solved]

Hi all, im having snags creating a variable which uses commands like cut and grep. In the instance below im simply trying to take a value from another file and assign it to a variable. When i do this it only prints the $a rather than the actual value. I know its simple but does anyone have any... (1 Reply)
Discussion started by: somersetdan
1 Replies

6. Shell Programming and Scripting

How can we assign value to an array variable from an external file?

is it possible to assign value to an array variable from an external file?? if yes then how?? I am using below code but its not working. #!bin/bash myarray < file_name echo ${mayarray} (6 Replies)
Discussion started by: mukulverma2408
6 Replies

7. Shell Programming and Scripting

passing file extension using external variable

Hi, How can I modify the FILETYPE command ? I want to provide the file extension, like txt, root .? Thanks, #!/bin/bash FROM=$1 TO=$2 FILETYPE=$3 ... (4 Replies)
Discussion started by: nrjrasaxena
4 Replies

8. Shell Programming and Scripting

File test commands with variable file name

Hi there I have the following code SDFFILE_SRC=$BACKEND_DIR/$SDFFILE_MIN_tar SDFFILE_DST=$SIM_DIR/$SDFFILE_MIN if ] .... .... .... fi Simply I need to check if $SDFFILE_SRC isa newer than $SDFFILE_DST or $SDFFILE_DST does not exist then execute the IF Body. Although the the... (2 Replies)
Discussion started by: aelhosiny
2 Replies

9. Shell Programming and Scripting

Grabbing fields without using external commands

data: bblah1_blah2_blah3_blah4_blah5 bblahA_blahB_blahC_blahD_blahE im using the following code to grab the field i want: cat data | while IFS='_' read v1 v2 v3 v4 v5; do printf '%s\n' "${v4}"; done im catting data here. in the real world, the exact content of data will be in a variable.... (4 Replies)
Discussion started by: SkySmart
4 Replies
PWD(1)							    BSD General Commands Manual 						    PWD(1)

NAME
pwd -- return working directory name SYNOPSIS
pwd [-LP] 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 -P option is assumed. ENVIRONMENT
Environment variables used by pwd: PWD Logical current working directory. DIAGNOSTICS
The pwd utility exits 0 on success, and >0 if an error occurs. STANDARDS
The pwd utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). SEE ALSO
builtin(1), cd(1), csh(1), sh(1), getcwd(3) 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
February 4, 2002 BSD
All times are GMT -4. The time now is 02:00 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy