Sponsored Content
Top Forums Shell Programming and Scripting Script doesn't understand if conditiojn with or Post 302993238 by Scrutinizer on Tuesday 7th of March 2017 11:12:56 PM
Old 03-08-2017
@Don, the use of double == in a test command is not part of the POSIX standards. rdrtx1's suggestion is grammatically correct.

See test: operands
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Can't understand the script

I am relatively new to Shell Scripting. I can't understand the following two scripts. Can someone please spare a minute to explain? 1) content s of file a are (021) 654-1234 sed 's/(//g;s/)//g;s/ /-/g' a 021-654-1234 2)cut -d: -f1,3,7 /etc/passwd |sort -t: +1n gives error (3 Replies)
Discussion started by: shahdharmit
3 Replies

2. Shell Programming and Scripting

Help to understand the script

Hi All; Is there anybody can explain this script please? trap 'C_logmsg "F" "CNTL/c OS signal trapped, Script ${G_SCRIPTNAME] terminated"; exit 1' 2 trap 'C_logmsg "F" "Kill Job Event sent from the Console, Script ${G_SCRIPTNAME] terminated"; exit 1' 15 (3 Replies)
Discussion started by: thankbe
3 Replies

3. Shell Programming and Scripting

Understand script formte

Hi i have one script and i am running it but not getting current output so i want to understand how to input in the script. when i do help then i am getting below massage thanks got it (1 Reply)
Discussion started by: asavaliya
1 Replies

4. Red Hat

Grep doesn't understand escape sequence?

I ran the following grep and sed command. grep "\t" emp.txt sed -n '/\t/p' emp.txt grep treated the '\' as to escape t and took the pattern as literal t whereas sed took the pattern as tab. That means , grep doesn't understand escape sequence!!!!!! what to do to make grep... (8 Replies)
Discussion started by: ravisingh
8 Replies

5. Shell Programming and Scripting

awk doesn't understand 'read' statement!!!

While working on awk programming, i found that it doesn't understand 'read' statement. Then what's the use of 'continue' and 'break' statement in awk. For ex: awk '{k=1; while (k<10) {print $0; k++}}' emp.lst Now, please say if I want to put the logic that after priting 1 line, it will ask for... (13 Replies)
Discussion started by: ravisingh
13 Replies

6. Shell Programming and Scripting

Need help to understand this small script

Hi Guys, I need to understand below scipt:- -bash-3.00$ cat rsync-copy.ksh #!/usr/5bin/ksh batch <<%EOF% echo "/usr/local/bin/rsync --rsync-path=/usr/local/bin/rsync -a --stats /usr/openv/ /OpenvBCK" > openv.LOG # CG /usr/local/bin/rsync ... (6 Replies)
Discussion started by: manalisharmabe
6 Replies

7. Shell Programming and Scripting

Help to understand a script

Hello world! Can someone please explain me how this code works? I'ts supposed to find words in a dictionary and show the anagrams of the words. { part = word2key($1) data = $1 } function word2key(word, a, i, x, result) { x = split(word, a, "") asort(a) ... (1 Reply)
Discussion started by: jose2802
1 Replies

8. Shell Programming and Scripting

Need help to understand the below shell script

Please help me to understand the below 3 lines of code.execute shell in jenkins 1)APP_IP=$( docker inspect --format '{{ .NetworkSettings.Networks.'"$DOCKER_NETWORK_NAME"'.IPAddress }}' ${PROJECT_NAME_KEY}"-CI" ) 2)HOST_WORKSPACE=$(echo ${WORKSPACE} | sed... (1 Reply)
Discussion started by: naresh85
1 Replies

9. UNIX for Beginners Questions & Answers

Help me understand this script

#!/bin/awk -f BEGIN {i=1;file="modified.txt"} { if ($0 !~ /^DS:/) {print $0 >> file} else { if ($0 ~ /^DS:/) {print "DS: ",i >> file;if (i==8) {i=1} else {i++}}; } } END {gzip file} Can someone explain to me how this above script works, I got it from a friend but not able... (3 Replies)
Discussion started by: Kamesh G
3 Replies
ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
All times are GMT -4. The time now is 06:58 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy