Shell script to replace output of command


Login or Register for Dates, Times and to Reply

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Shell script to replace output of command
# 1  
Shell script to replace output of command

Hi

I would like to write a shell script which replace particular text in output of a shell command. For example : If I execute pwd (if dir is /users/master/) it should display as - /users/Master_directory/.

Also, for generalising the script I would like to receive parameters when I run the shell script.

Help will be appreciated.

Thanks
Ratnesh
# 2  
Post how you want to run the script..do you want something like this ?

Code:
bash# ./replace.sh "pwd" "master" "Master_directory"

# 3  
Quote:
Originally Posted by rajamadhavan
Post how you want to run the script..do you want something like this ?

Code:
bash# ./replace.sh "pwd" "master" "Master_directory"


Below is rough outline :

1. Call script with few parameters like " -firstparam One -secondparam Two"
2. In script execute a unix command lets say "cat example.txt". Original output is -
This is line number 1
This is line number 2

3. Replace data in output -
1 is replaced by One and 2 by Two

4. Displays final output -
This is line number One
This is line number Two

I hope I am clear enough
# 4  
And what have you done so far?
Login or Register for Dates, Times and to Reply

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #924
Difficulty: Medium
The present form of UTC, with leap seconds, is only defined starting from 1 January 1972.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to pipe command output to shell script?

Hi Team, Need a help on how to pipe a command out put to a shell script. My shell script looks like below. cat shell_script #!/usr/bin/ksh input =$@ echo " we are inside the shell script" echo " here are the input parameters" .......................... .................. ... (11 Replies)
Discussion started by: gvkumar25
11 Replies

2. Shell Programming and Scripting

How to echo output of a UNIX command (like ls -l ) using shell script.?

How do i echo the output of a unix command using shell script??? Like: echo /etc/ ls -l (2 Replies)
Discussion started by: sunny2802
2 Replies

3. Shell Programming and Scripting

Redirecting command output to a file in a shell script

Hello All, I have some unique requirement. I have written a very lengthy script which calls number of resource script to execute a particular task. What I want is output of each command(called from main script and resource scripts) should go to a... (3 Replies)
Discussion started by: anand.shah
3 Replies

4. Shell Programming and Scripting

Shell Script to grep output from top command.

Hello, I want a script which would grep details from top command for specific processes. I m not sure of the PID of these processes but i know the names. $ top -c top - 16:41:55 up 160 days, 5:53, 2 users, load average: 9.36, 9.18, 8.98 Tasks: 288 total, 9 running, 279 sleeping, 0... (8 Replies)
Discussion started by: Siddheshk
8 Replies

5. Shell Programming and Scripting

shell script to format command output

Hello team, I am running below command which is giving following output. bash-3.00$ ps -eo pid,pcpu,args | sort +1n | grep -i java 12 0.0 grep -i java 8804 0.0 /opt/app/ccr/home/ccr/WebSphere/AppServer/java/bin/sparcv9/java -XX:+UnlockDiag 9241 0.0... (7 Replies)
Discussion started by: coolguyamy
7 Replies

6. Shell Programming and Scripting

Need help with shell script - output of top command

I have written shell script to send file as an attachemt of email and output of "top -o res" command as email body. it works fine if i execute manually from prompt but it does not send "top -o res" command output in email body when it is executed via crontab. Any suggestions. My script is below:... (5 Replies)
Discussion started by: needyourhelp10
5 Replies

7. UNIX for Dummies Questions & Answers

Passing command output as an argument to a shell script

Hi, I have a very small requirement where i need to pass command output as an argument while invoking the shell script.. I need to call like this sh testscript.sh ' ls -t Appl*and*abc* | head -n 1' This will list one file name as ana argument.. I will be using "$1" in the shell... (2 Replies)
Discussion started by: pssandeep
2 Replies

8. Shell Programming and Scripting

Evaluating command output (shell script )

Hello, in a script i would like to evaluate a command output with a grep, for example, to know if the parameter defined by the user is in the output. Something like: the_command | grep $1 Please, how is the way to evalulate in this a script, like if echo "incorrect parameter, not in... (2 Replies)
Discussion started by: aristegui
2 Replies

9. Shell Programming and Scripting

reading command output from shell script

Hi List, How to read the output of a command executed from a script. For ex. sample_scritp.sh ------------- useradd testuser1 password testuser1 .... ..... -------------- This prompts for "password", and "confirm password", for which i need to give the values from script. Can... (4 Replies)
Discussion started by: sri b
4 Replies

10. Shell Programming and Scripting

Capturing shell script command output

I am trying to check to see if a file exists on a ftp server, well, I know that cant be done, atleast directly, So I came up with this small script ftp -n $HOST <<END_SCRIPT quote USER $USER quote PASS $PASSWD cd public_html/crap dir $FILE quit END_SCRIPT Where the $ variable... (2 Replies)
Discussion started by: designflaw
2 Replies

Featured Tech Videos