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bash

Bash stands for Bourne-Again Shell.

Bash: for

hash

history

Bash - shopt

Bash: while

Bash: scripts

Bash: conditional constructs

bash - variables

Relationship to /bin/sh

On some systems /bin/sh is a symlink to /bin/bash.

On such systems, if bash is invoked via sh or /bin/sh, bash tries to follow the startup behaviour of older versions of sh, but also to conform to the POSIX standard.

TODO

programmable completion

/usr/share/bash-completion/bash-completion

Embed hexadecimal characters in strings

A string literal in the form $'…' allows to embed characters in hexadecimal form:

echo   $'The first character of the alphabet is \x41'

The built-in echo command has the special -e flag which also allows to embed hexadecimal characters.

echo -e "The first character of the alphabet is \x41"

bash

Relationship to /bin/sh

TODO

programmable completion

Embed hexadecimal characters in strings

See also