DOT-Files/Gentoo/gentooamd/home/user/.tldrc/tldr/pages/common/{.md

{

Multipurpose shell syntax. More information: https://www.gnu.org/software/bash/manual/bash.html.

• Isolate variable names:

echo ${{{HOME}work}}

• Brace expand sequences:

echo {{{1..3}}} {{{a..c}}}{{{dir1,dir2,dir3}}}

• Check if variable is set before returning text:

echo ${{{variable:+variable is set and contains $variable}}}

• Set default values in case variable is unset:

echo ${{{variable:-default}}}

• Return variable length in characters:

echo ${{{#variable}}}

• Return a string slice:

echo ${{{variable:3:7}}}

• Recursively expand a variable:

echo ${{{!variable}}}

• Group command output together:

{ {{command1; command2; ...}} } | {{another_command}}