Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Issue with pwd for script run by double click on script (MacOS High SIerra)
Top Forums Shell Programming and Scripting Issue with pwd for script run by double click on script (MacOS High SIerra) Post 303031994 by Don Cragun on Saturday 9th of March 2019 12:02:42 AM
Old 03-09-2019
It should be stable as long as you double-click on a link to invoke your script (as long as you don't change the way you create the link, change any configuration variables that control how links are set, or change the attributes of the link). It should also work if you double-click on the script's name in finder. And, it should also work if you invoke it by giving its name with any absolute or relative pathname to your shell to invoke it, e.g., $PWD/script_name or ./script_name.

If, however, you invoke the script by just using its name (without specifying the directory in which it is located), you could end up with $0 just being script_name if one of the directories included in your $PATH variable is .. If this happens, you can't cd to ${0%/*}. But the following is still likely to work in all cases I can think of with what you're doing:
Code:
#!/bin/bash
[ "$0" != "${0%/*}" ] && cd "${0%/*}"
... ... ...

It might also work with ${BASH_SOURCE[0]}, but that would depend on which version of bash is being used.
Good luck,
Don
This User Gave Thanks to Don Cragun For This Post:
LMHmedchem
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

script for db user pwd

The script to get the db user password from LDAP does not work on AIX 5.3. It's using bash. Our current shell is /usr/bin/shell. How can i make changes to this script so that it can run on aix with current shell with out installing bash. We tried making but din't work. ... (0 Replies)
Discussion started by: noorm
0 Replies

2. Shell Programming and Scripting

script to change shell's pwd

Hi there, i was presented with a challenge that is beyond my current shell knowledge: how can you have a script that executed interactive will change your current working directory? Example (under MacOS): 1. start Terminal and my current working directory is my home folder 2. execute a... (3 Replies)
Discussion started by: gigagigosu
3 Replies

3. Shell Programming and Scripting

what would a script include to find CPU's %system time high and user time high?

Hi , I am trying to :wall: my head while scripting ..I am really new to this stuff , never did it before :( . how to find cpu's system high time and user time high in a script?? thanks , help would be appreciated ! :) (9 Replies)
Discussion started by: sushwey
9 Replies

4. Red Hat

Unable to get $PWD value from script in /etc/init.d

Hi ppl hope to have your advice, i am run out of idea... I have 3 scripts: a.sh, b.sh, and c.sh a.sh resided in /etc/init.d b.sh and c.sh /opt/xSystem I intend to start my system with "service" command which will trigger my a.sh service a.sh start then. a.sh will trigger... (4 Replies)
Discussion started by: cielle
4 Replies

5. Shell Programming and Scripting

getting pwd of script

how can i get the absolute path of whatever directory a script and/or command is in when it is run? i want to know the directory. say for instance, if i were to run the "who" command, i want to know exaclty where the who command is located. if a user ran a script, i want to know where there... (2 Replies)
Discussion started by: SkySmart
2 Replies

6. UNIX for Dummies Questions & Answers

Pwd script

when user types "pwd.sh joe" at command line, it generates pwd as abc123 and when user types "pwd.sh jane" at command line, it generates pwd as abc123. pwd will change every 90 days. my pwd file will be always abc123 until i change joe/jane/bob pwd manually. (3 Replies)
Discussion started by: lawsongeek
3 Replies

7. UNIX for Beginners Questions & Answers

Capture power button press on MacOs High Sierra?

Hello everyone! I'm developing a MacOs Application in python and I'm having some issues trying to find information related to the power button pressed event. I know that in Ubuntu 14.04 you can find information about it on the acpi folders, but I realized that here in Mac that process is... (0 Replies)
Discussion started by: xedge
0 Replies

8. OS X (Apple)

If you run macOS High Sierra version 10.13.1, be sure to install today's update.

Some hackers found a security hole in macOS High Sierra and tweeted it to the world before telling Apple about the problem. You can see the details from PC Magazine's daily news here: Apple Releases Fix for MacOS High Sierra 'Root' Bug. The original story this morning was published before a patch... (6 Replies)
Discussion started by: Don Cragun
6 Replies

9. Shell Programming and Scripting

Terminal running bash/rsync script does not close with exit (MacOS High SIerra)

Hello, I am running a bash script to do an rsync back on a computer running MacOS High Sierra. This is the script I am using, #!/bin/bash # main backup location, trailing slash included backup_loc="/Volumes/Archive_Volume/00_macos_backup/" # generic backup function function backup {... (12 Replies)
Discussion started by: LMHmedchem
12 Replies

10. Shell Programming and Scripting

Issue with shutdown command in script (MacOS High Sierra)

Hello, I have a backup script that runs an rsync backup to an external drive. I use the script frequently on Windows and Linux and have installed it on a Mac. The script has an option to run shutdown after the backup has completed. Since backup can take hours to run, this is an option that is... (10 Replies)
Discussion started by: LMHmedchem
10 Replies

LEARN ABOUT DEBIAN

bf_tar

BF_TAR(1)						    Bogofilter Reference Manual 						 BF_TAR(1)

NAME

       bf_tar - shell script to write a tar file of a bogofilter directory to stdout

SYNOPSIS

       bf_tar [-r] [-R] bogofilter_directory

DESCRIPTION

       bf_tar bundles a bogofilter working directory in tar format and copies it to standard output (your console, or where you redirect it, see
       EXAMPLES below).

OPTIONS

       The -r option causes bf_tar to remove inactive log files after the archive has been written successfully. The default is to leave log
       files.

       The -R option causes bf_tar to remove inactive log files before the archive is written. This may reduce chances that the resulting archive
       is recoverable should it become damaged. The archive may be smaller though. The default is to leave log files.

EXIT STATUS

       The script exits with status code 0 if everything went well, and nonzero if it encountered trouble.

EXAMPLES

       o   bf_tar ~/.bogofilter > outfile.tar

	   Writes a standard .tar file containing the essential files from ~/.bogofilter to outfile.tar.

       o   bf_tar ~/.bogofilter | gzip -9 -c > outfile.tar.gz

	   Writes a gzipped .tar.gz file containing the essential files from ~/.bogofilter to outfile.tar.gz.

       o   bf_tar `pwd`/mydirectory > outfile.tar

	   Prepend $(pwd)/ or `pwd`/ if you want to specify an absolute path instead of a relative path.

NOTES

       This script is meant for use with Berkeley DB based bogofilter versions.

       This script requires a SUSv2 compliant pax utility.

       This script expects a SUSv2 compliant shell. Solaris systems should have the SUNWxcu4 package installed (when bogofilter is configured) so
       that /usr/xpg4/bin/sh can be used.

AUTHORS

       Matthias Andree

Bogofilter							    03/15/2010								 BF_TAR(1)
All times are GMT -4. The time now is 01:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy