
bash - Shell equality operators (=, ==, -eq) - Stack Overflow
If not quoted, it is a pattern match! (From the Bash man page: "Any part of the pattern may be quoted to force it to be matched as a string."). Here in Bash, the two statements yielding "yes" …
Bash test: what does "=~" do? - Unix & Linux Stack Exchange
Jan 27, 2017 · I realize you said “read the bash man pages” but at first, I thought you meant read the man pages within bash. At any rate, man bash returns a huge file, which is 4139 lines (72 …
What does 'set -e' mean in a Bash script? - Stack Overflow
By default, Bash does not do this. This default behavior is exactly what you want if you are using Bash on the command line you don't want a typo to log you out! But in a script, you really want …
What does the -e do in a bash shebang? - Unix & Linux Stack …
All the bash command line switches are documented in man bash. -e Exit immediately if a pipeline (which may consist of a single simple command), a subshell command enclosed in …
bash - Difference between >> and - Unix & Linux Stack Exchange
In general, in bash and other shells, you escape special characters using \. So, when you use echo foo >\> what you are saying is "redirect to a file called > ", but that is because you are …
bash - Confusing use of && and - Unix & Linux Stack Exchange
bash shell scripting control-flow Improve this question edited Nov 16, 2011 at 22:16 Gilles 'SO- stop being evil'
An "and" operator for an "if" statement in Bash - Stack Overflow
Modern shells such as Bash and Zsh have inherited this construct from Ksh, but it is not part of the POSIX specification. If you're in an environment where you have to be strictly POSIX …
shell - Difference between sh and Bash - Stack Overflow
When writing shell programs, we often use /bin/sh and /bin/bash. I usually use bash, but I don't know what's the difference between them. What's the main difference between Bash and sh? …
How to increment a variable in bash? - Ask Ubuntu
Jan 30, 2017 · #!/bin/bash # To focus exclusively on the performance of each type of increment # statement, we should exclude bash performing while loops from the # performance measure.
How to output a multiline string in Bash? - Stack Overflow
Jun 10, 2012 · Then, I can make it a bash library, with unit tests and all, and import (source) it wherever needed, as I explain about bash libraries here: Detailed example: how do you write, …