shell - Bash regex =~ operator - Stack Overflow
Oct 18, 2013 · What is the operator =~ called? I'm not sure it has a name. The bash documentation just calls it the =~ operator. Is it only used to compare the right side against the …
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" …
How to compare strings in Bash - Stack Overflow
Feb 10, 2010 · Bash always seemed backward with numeric evaluations using an operator consisting of a string (-eq) and string comparisons using a numeric operator "==" or "=" just …
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 …
bash - How can I call one shell script from another shell script ...
I have two shell scripts, a.sh and b.sh. How can I call b.sh from within the shell script a.sh?
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 do I iterate over a range of numbers defined by variables in …
Oct 4, 2008 · Related discusions: bash for loop: a range of numbers and unix.stackexchange.com - In bash, is it possible to use an integer variable in the loop control of a for loop?
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.
sh - [: missing `]' in bash script - Stack Overflow
Feb 9, 2016 · A bash function has no line numbers related to the FILE that contains the definition. NOW: The code is stored somewhere internally in the running instance of Bash - does it …
bash - How to escape single quotes within single quoted strings
Aug 9, 2009 · bash: !\x22: event not found One more alternative: this allows mixed expansion and non-expansion all within the same bash string Here is another demo of an alternative escaping …