Apr 3, 2012 · What does a dollar sign followed by an at-sign (@) mean in a shell script? For example: umbrella_corp_options $@

536 = and == are for string comparisons -eq is for numeric comparisons -eq is in the same family as -lt, -le, -gt, -ge, and -ne == is specific to bash (not present in sh (Bourne shell), ...). Using POSIX = is …

Aug 7, 2013 · What does -z mean in Bash? [duplicate] Asked 12 years, 6 months ago Modified 1 year, 7 months ago Viewed 502k times

Nov 16, 2018 · For conditional expressions info go for man bash it gives info as follows too. CONDITIONAL EXPRESSIONS Conditional expressions are used by the [ [ compound command …

I'm studying the content of this preinst file that the script executes before that package is unpacked from its Debian archive (.deb) file. The script has the following code: #!/bin/bash set -e #

Mar 9, 2018 · A: To "execute this script" from the terminal on a Unix/Linux type system, you have to do three things: 1. Tell the system the location of the script. (pick one) # type the name of the script with …

Oct 19, 2012 · This says that the script must run at levels 3, 4, and 5, and the priority for start/stop is 99 and 10. Then, as user root you can use chkconfig to enable or disable the script at startup:

I'm trying to write a small script to change the current directory to my project directory: #!/bin/bash cd /home/tree/projects/java I saved this file as proj, added execute permission with chmod, ...

How do I get the path of the directory in which a Bash script is located, inside that script? I want to use a Bash script as a launcher for another application. I want to change the working directo...

What command checks if a directory exists or not within a Bash shell script?