Sponsored Content
Full Discussion: Conditional execution
Top Forums Shell Programming and Scripting Conditional execution Post 302429592 by frans on Tuesday 15th of June 2010 02:20:13 AM
Old 06-15-2010
Quote:
Code:
ping localhost -n 2 | grep 'ttl' > ping_op; ls ping_op > /dev/null && drReachable=Alive; echo -e `date`: \\t "DR server is reachable" >> dr_check.log

You don't need to grep as the ping command returns an error status when target is unreachable.
Code:
ping localhost -n 2 && { drReachable=Alive; echo -e "$(date): \\t DR server is reachable" >> dr_check.log; }

Whithout brackets, the command after the last semicolon would run in any case.
This User Gave Thanks to frans For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

If conditional

Hi, I am new to unix and shell scripting.In my script,there is a line using the "if" conditional - if && ; then do something Here "x" is a variable holding string value.If it is not equal to a comma or a string,only then I want to enter the "if" loop. But I am getting error while... (1 Reply)
Discussion started by: abhinavsinha
1 Replies

2. Shell Programming and Scripting

Conditional execution and parallel jobs

how can i process jobs parallel with conditions below. Script1.ksh Script2.ksh Script3.ksh Script4.ksh Script5.ksh Script6.ksh Script7.ksh Script8.ksh Script9.ksh Script10.ksh After successful completion of Script1.ksh I need to run Script7.ksh. After successful... (4 Replies)
Discussion started by: ford2020
4 Replies

3. Shell Programming and Scripting

unix script for conditional execution

Below is my shell script. I am trying to execute two different BTEQ scripts depending on the day of the week. So on a saturday I will execute a certain BTEQ script and on other weekdays I will run the other script. #!/bin/ksh dt=`date +"%a"` if then bteq > final_output <<- EOF .run... (3 Replies)
Discussion started by: Mihirjani
3 Replies

4. Shell Programming and Scripting

Expect Issue Serial Forground Execution vs Concurrent Background Execution

I have an expect script that interrogates several hundred unix servers for both access and directories therein using "ssh user@host ls -l /path". The combination of host/path are unique but the host may be interrogated multiple times if there are multiple paths to test. The expect script is run... (2 Replies)
Discussion started by: twk
2 Replies

5. Shell Programming and Scripting

Help on shell script conditional execution when CPU Idle > 60%

I need a shell script that will monitor a few conditions and not execute until the these conditions are met. The problem I'm having is that I can not perform a database snapshot (backup) of a sybaseIQ database unless the CPU Status Idle % is above 60% or the snapshot (backup) fails. If... (2 Replies)
Discussion started by: pancona99
2 Replies

6. UNIX for Dummies Questions & Answers

Conditional execution of statements

Hi , I have a script which has multiple awk and sed commands like below. First one :- find /root/src/ -name "*csv" -size 0 -exec rm {} \; Second one: - ls *SRE*.txt > SRT_TRAN.dat rm *asr*.txt Third one :- find /root/src/ -name '*.csv' | while read FILENAME ; do awk... (2 Replies)
Discussion started by: shruthidwh
2 Replies

7. Shell Programming and Scripting

search and conditional execution

Hi, I have a list of files with different filenames like nam0001.txt,pan0001.txt etc coming in /data/inbox from various places. I needed a shell script which would:- 1)searches for a word from the filenames (coming in inbox directory) provided in input parameter. 2)if found, put in... (2 Replies)
Discussion started by: Saiesh
2 Replies

8. Shell Programming and Scripting

Conditional Execution of a Script.

I have a unix shell script Test.sh more Test.sh echo "Calling dbquery1.sh...." ./dbquery1.sh echo "Calling dbquery2.sh...." ./dbquery2.sh more dbquery1.sh sqlplus -s user1/password1@DB_SID @/tmp/storedprocedures/Hello.rcp I run Test.sh However, I do not want dbquery2.sh to be... (3 Replies)
Discussion started by: mohtashims
3 Replies

9. Shell Programming and Scripting

Conditional execution

Here's an interesting (to me, anyway) little puzzle. Background: I have a process that restores a number of large(ish) files from tape backup. As an individual file is being written, it is owned by root, then the ownership is changed when that file is complete. Since this process can take... (3 Replies)
Discussion started by: edstevens
3 Replies

10. UNIX for Dummies Questions & Answers

Bashrc File - Conditional Command Execution?

Hello All, I was wondering if there is a way to execute a command in my ".bashrc" file based on how I logged into the PC? I was thinking maybe there is a way to check how the user (*myself) logged in, maybe somehow with the who command along with something else, but I'm not sure... I know I... (7 Replies)
Discussion started by: mrm5102
7 Replies
ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
All times are GMT -4. The time now is 06:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy