My Bash script collection.
A dicision table implementation. This contains functions that helps to improve the readability of complex if statements.
Example:
$ cat << EOF > ./get-status.sh > #!/usr/bin/env bash > > source ./decisiontab > > # this is real code not document > decision_init LIVE INIT READY TERM > decision_rule yes no - - echo not-initialized > decision_rule yes yes no no echo not-ready > decision_rule yes yes yes no echo ready > decision_rule yes - - yes echo terminating > decision_rule no - - yes echo terminated > decision_rule - - - - echo invalid > decision_make EOF $ env LIVE=yes INIT=yes READY=yes TERM=no bash ./get-status.sh > readyA fancy echo command wrapper. 16 colors defined by ANSI escape code are available.
Example:
$ ./echo-with-color -R hello -Y world -G with -C 3/4 -B bit -M color > hello world with 3/4 bit color # shown in each color A little flexible file output command. You can specify whether to append or replace, overwrite or not overwrite, etc. Also this outputs short and meaningful information.
Example:
$ echo 'input' | ./file-output output.txt > output.txt: file created $ echo 'input' | ./file-output output.txt # no overwrite, and returns non-zero exit status > output.txt: already exists $ echo 'input' | ./file-output -n output.txt # no overwrite, but returns exit status of zero > output.txt: already exists, but ignored $ echo 'input' | ./file-output -f output.txt # overwrite, but not changed > output.txt: OK $ echo 'other input' | ./file-output -f output.txt # overwrite, and changed > output.txt: changed