Sponsored Content
Top Forums Shell Programming and Scripting Strange behaviour with "set -e" and functions Post 302335462 by kshji on Sunday 19th of July 2009 12:42:55 PM
Old 07-19-2009
Bash doc, set

This is generic for every posix-shells:
Code:
fun() {
  echo "fun_start"
  test 1 = 2  || return 1
  echo "fun_end"
}

echo "main_start"
fun || echo "fun failed"
echo "main_end"

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Problem with "set" and "awk"

Hi, i'm programming on /bin/csh and i need to get the number extracted by this: set ppl_kn = $(awk '{ field = $6 } ; END{ print field }' < ppl_LM_kn.ppl ) and the output is: "Illegal variable name." Please anyone can help me what's wrong? Thanks in advance (2 Replies)
Discussion started by: tmxps
2 Replies

2. Programming

Differece between "env" and "set" command

Hi, Please clarify what is the difference between "env" and "set" command. I guess set will display the system variables and user defined variables. Thanks Sweta (1 Reply)
Discussion started by: sweta
1 Replies

3. Shell Programming and Scripting

unix "trap" command behaviour

Hi I am using "trap" command in my script to prevent the user from running Ctrl-C during the its execution. My script creates number of children processes which in turn create some children processes as well during the execution. When user / tester tries to run Ctrl-C, the parent process is... (1 Reply)
Discussion started by: aoussenko
1 Replies

4. Shell Programming and Scripting

user-defined functions, "$@", $jobs and $ps wwaxu

Imagine a user-defined function. func() { /usr/pkg/bin/program long-string-of-switches-and-configs "$@" ;} I execute it once. Then background it. I execute another instance. Then bg it. func unique-user-input ^Z func unique-user-input ^Z First I view with ps ps wwaux ... (0 Replies)
Discussion started by: uiop44
0 Replies

5. Shell Programming and Scripting

find: "weird" regex behaviour

I have these two files in current dir: oos.txt oos_(copy).txt I execute this find command:find . -regex './oos*.txt'And this outputs only the first file (oos.txt)! :confused: Only if I add another asterisk to the find find . -regex './oos*.*txt' do I also get the second file... (7 Replies)
Discussion started by: courteous
7 Replies

6. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone... (7 Replies)
Discussion started by: shis100
7 Replies

7. Shell Programming and Scripting

Strange "cut" command's behaviour

Hi, Suppose if I have a file having data like this: $ cat file.txt A B C D And, if I do a cut operation like this: $ cut -d" " -f2 file.txt The output is A C D This is the same for even if we try to get the field 3 with -f3 (assume line 2 has 3 fields : C E F). The above... (1 Reply)
Discussion started by: royalibrahim
1 Replies

8. Shell Programming and Scripting

Why awk print is strange when I set FS = " " instead of FS = "\t"?

Look at the following data file(cou.data) which has four fields separated by tab. Four fields are country name, land area, population, continent where it belongs. As for country name or continent name which has two words, two words are separated by space. (Data are not accurately... (1 Reply)
Discussion started by: chihuyu
1 Replies

9. Shell Programming and Scripting

Explaining behaviour of sudo bash "$0" "$@";

I've found this script part on the stackoverflow: if ; then sudo bash "$0" "$@"; exit "$?"; fi I realized that sudo bash "$0" "$@"; is the only needed for me. But the strange thing happens when I move this line outside the IF statement: sudo bash "$0" "$@"; stops the... (9 Replies)
Discussion started by: boqsc
9 Replies

10. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
octave-bug(1)						      General Commands Manual						     octave-bug(1)

NAME
octave-bug - report a bug in GNU Octave SYNOPSIS
octave-bug [-s subject] DESCRIPTION
octave-bug is a shell script to help the user compose and mail bug reports concerning Octave in a standard format. octave-bug is typically invoked by the Octave command bug_report which is intended to be called interactively from within Octave. This provides the best way to submit a bug report for Octave. It creates a template bug report file and starts an editor on that file. The bug report will be sent to the bug-octave mailing list once the editing has been completed (this assumes of course that your system can use email). However, the user could also call octave-bug outside of Octave. Please read the `Bugs' chapter in the Octave manual to find out how to submit a bug report that will enable the Octave maintainers to fix the problem. If you are unable to use the bug_report command, send your message to the bug-octave mailing list, bug- octave@bevo.che.wisc.edu. OPTIONS
-s subject Specify a subject line for the bug report. Spaces in the subject must be quoted. ENVIRONMENT VARIABLES
octave-bug uses the environment variables USER, EDITOR, and PAGER which can be used for customization. VERSION
This document was last revised for Octave version 2.0.16. SEE ALSO
octave(1), bashbug(1) AUTHOR
John W. Eaton Department of Chemical Engineering University of Wisconsin-Madison Madison, WI 53706 USA <jwe@bevo.che.wisc.edu> GNU
6 March 2000 octave-bug(1)
All times are GMT -4. The time now is 11:32 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy