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  1. bash - Shell equality operators (=, ==, -eq) - Stack Overflow

    529 = 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 …

  2. What does $# mean in bash? - Ask Ubuntu

    Jul 25, 2017 · Furthermore, when you use bash -c, behavior is different than if you run an executable shell script, because in the latter case the argument with index 0 is the shell …

  3. 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 …

  4. 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?

  5. What do the -n and -a options do in a bash if statement?

    The switches -a and -n are not strictly part of a bash if statement in that the if command does not process these switches. What are primaries? I call them "switches", but the bash …

  6. How to compare strings in Bash - Stack Overflow

    Feb 10, 2010 · How do I compare a variable to a string (and do something if they match)?

  7. bash - What is indirect expansion? What does $ {!var*} mean?

    Dec 15, 2011 · I'm reading " Bash Guide for Beginners ". It says: If the first character of PARAMETER is an exclamation point, Bash uses the value of the variable formed from the rest …

  8. What is 'bash' command in bash? - Ask Ubuntu

    Aug 1, 2020 · I just typed bash in Ubuntu's terminal and, it was like normal. But after that, I had to type exit twice. What is bash command in bash?

  9. What does 'set -e' mean in a Bash script? - Stack Overflow

    74 As per bash - The Set Builtin manual, if -e / errexit is set, the shell exits immediately if a pipeline consisting of a single simple command, a list or a compound command returns a non-zero …

  10. 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.