pure-bash-bible issues

read, store, write a file including nulls

Read and write a file including nulls, pure bash, no externals, no sub-shell forks. not limited to late versions. Slow and ram-hungry. Every byte is read one byte at a...

bkw777

basename with one argument fails with set -u

1

As the second argument can be unbound in `basename`, the following script will fail: ```bash #!/usr/bin/env bash set -u basename() { # Usage: basename "path" ["suffix"] local tmp tmp=${1%"${1##*[!/]}"} tmp=${tmp##*/}...

lunik1

shift at least...

2

This has bitten me multiple times, not sure if there is a good place for it in the book? When a function accepts optional parameters for arg1, and arg2, and...

georgalis

Shorter if syntax

7

[[ 1 == 1 ]] && { command exit 1 } || { this command will exec } how to avoid???

qiufeihai

Add warning about shorter `if` and `&&`

4

Definitely nice to use `&&` as a shorter `if`, but there are caveats, when using `&&` in a function. This is probably the single largest error I used to make....

e40

Splitting a string on a delimiter

1

A slightly nicer alternative to the proposed solution would be ```sh split_string() { # Usage: split_string "string" "delimiter" printf '%s\n' "${1//$2/$'\n'}" } ``` No need for creating an array first.

helpermethod