Sponsored Content
Full Discussion: Modifying the Restart Script
Top Forums Shell Programming and Scripting Modifying the Restart Script Post 302526928 by itkamaraj on Thursday 2nd of June 2011 02:08:19 AM
Old 06-02-2011
A special variable called $? holds the last executed command exit status

in the if condition, we are checking the status. 0(zero) means success.

if it is success, then we are triggering the start script. Otherwise exit the shell script with exit status 1

---------- Post updated at 11:38 AM ---------- Previous update was at 11:38 AM ----------

Unix - Special Variables
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

need help with understanding and modifying script

hi all, i am new to UNIX. this is my first time using Ubuntu. i need to do this for my fyp. i am using an artificial neural network model to predict the yield strength of steel. the shell script used to execute this model is as shown here: #Thomas Sourmail, Cambridge University /... (4 Replies)
Discussion started by: dakkorn
4 Replies

2. Shell Programming and Scripting

Help modifying script to loop through all folders

I have this script someone very kindly help me write last year which loops through all files in a folder and does a command. I need to modify it to loop through all sub-folders of a main folder and only perform the command on files modified after Jan 1st 2008. And I need the command to place the... (3 Replies)
Discussion started by: Fred Goldman
3 Replies

3. Shell Programming and Scripting

Modifying a .ksh script

Hi users, I am on a beginner level and just joined this site. I have created a simple .ksh file in the following manner cat <<EOF >mfile #!/bin/ksh echo "hello world" EOF Request for some help with 2 cases 1. now i would like to add a second line after the first echo command... (4 Replies)
Discussion started by: corbusier
4 Replies

4. Shell Programming and Scripting

Modifying the ntpd deamon script

I need to replace the line daemon ntpd $OPTIONS in the following script with daemon ntpd $OPTIONS 2>&1 > /var/log/ntpd.log & what will happen? The idea of replacing is to capture the output on the console into ntpd.log file. Will this work? ... (1 Reply)
Discussion started by: naive1977
1 Replies

5. Shell Programming and Scripting

modifying perl script

Hi freinds I have a small problem I want u to help me in, I have a syslog server and configured it to send me email automatically, I get a small perl script to help me in, and tested it to send alerts to root and it worked successfully without any problems Now I want to send it outside, I... (4 Replies)
Discussion started by: reaky
4 Replies

6. Shell Programming and Scripting

modifying file using script

Hi, I am new to shell programming, and want to know is it possible to change the contents of file using script? for example, if want to search 2 words and want to replace these words with 2 new words. Regards, Manoj (4 Replies)
Discussion started by: manoj.solaris
4 Replies

7. UNIX for Dummies Questions & Answers

Modifying a shell script without using an editor

Hi all, I really wan't to know that how to edit a shell script with out using an editor.. Is there any command? (4 Replies)
Discussion started by: buddhi
4 Replies

8. Shell Programming and Scripting

awk script for modifying the file

I have the records in the format one row 0009714494919I MY010727408948010 NNNNNN N PUSAAR727408948010 R007YM08705 9602002 S 111+0360832-0937348 I want to get it int the format 0009714494919I MY010727408948010 NNNNNN N PUSAAR727408948010 R007YM08705 9602002 S ... (2 Replies)
Discussion started by: sonam273
2 Replies

9. Shell Programming and Scripting

Need some help modifying script

I have a script that currently runs fine and I need to add or || (or) condition to the if statement and I'm not sure the exact syntax as it relates to the use of brackets. my current script starts like this: errLog="/usr/local/website-logs/error.log" apacheRestart="service httpd restart"... (3 Replies)
Discussion started by: jjj0923
3 Replies

10. Shell Programming and Scripting

Script will keep checking running status of another script and also restart called script at night

I am using blow script :-- #!/bin/bash FIND=$(ps -elf | grep "snmp_trap.sh" | grep -v grep) #check snmp_trap.sh is running or not if then # echo "process found" exit 0; else echo "process not found" exec /home/Ketan_r /snmp_trap.sh 2>&1 & disown -h ... (1 Reply)
Discussion started by: ketanraut
1 Replies
exit(1)                                                            User Commands                                                           exit(1)

NAME
exit, return, goto - shell built-in functions to enable the execution of the shell to advance beyond its sequence of steps SYNOPSIS
sh exit [n] return [n] csh exit [ ( expr )] goto label ksh *exit [n] *return [n] DESCRIPTION
sh exit will cause the calling shell or shell script to exit with the exit status specified by n. If n is omitted the exit status is that of the last command executed (an EOF will also cause the shell to exit.) return causes a function to exit with the return value specified by n. If n is omitted, the return status is that of the last command exe- cuted. csh exit will cause the calling shell or shell script to exit, either with the value of the status variable or with the value specified by the expression expr. The goto built-in uses a specified label as a search string amongst commands. The shell rewinds its input as much as possible and searches for a line of the form label: possibly preceded by space or tab characters. Execution continues after the indicated line. It is an error to jump to a label that occurs between a while or for built-in command and its corresponding end. ksh exit will cause the calling shell or shell script to exit with the exit status specified by n. The value will be the least significant 8 bits of the specified status. If n is omitted then the exit status is that of the last command executed. When exit occurs when executing a trap, the last command refers to the command that executed before the trap was invoked. An end-of-file will also cause the shell to exit except for a shell which has the ignoreeof option (See set below) turned on. return causes a shell function or '.' script to return to the invoking script with the return status specified by n. The value will be the least significant 8 bits of the specified status. If n is omitted then the return status is that of the last command executed. If return is invoked while not in a function or a '.' script, then it is the same as an exit. On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways: 1. Variable assignment lists preceding the command remain in effect when the command completes. 2. I/O redirections are processed after variable assignments. 3. Errors cause a script that contains them to abort. 4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari- able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
break(1), csh(1), ksh(1), sh(1), attributes(5) SunOS 5.10 15 Apr 1994 exit(1)
All times are GMT -4. The time now is 03:48 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy