Bash Hackers Wiki

Bash compound commands - old revision restored

Jan Schampera — 2010-07-15T18:36:07+02:00

The main part of Bash's syntax are the so-called compound commands. They're called like that because they use "real" commands ( simple commands or lists) and knit some intelligence around them. That is what the essential "Bash language" is made of.

The classic test command - idiom and typos

Frederick Grose — 2010-07-14T23:42:01+02:00

test [ ] General syntax This command allows you to do various tests and sets its exit code to 0 (TRUE) or 1 (FALSE) whenever such a test succeeds or not. Using this exit code, it's possible to let Bash react on the result of such a test, here by using the command in an if-statement: #!/bin/bash # test if /etc/passwd exists if test -e /etc/passwd; then echo "Alright man..." >&2 else echo "Yuck! Where is it??" >&2 exit 1 fi

Small getopts tutorial - Steve Lessard suggested to explain parsing custom text instead of positional paraameters

Jan Schampera — 2010-07-14T21:40:50+02:00

FIXME incomplete When you want to parse commandline arguments in a professional way, getopts is the tool of choice. Unlike its older brother getopt (note the missing s!), it's a shell builtin command. The advantage is * you don't need to hand your positional parameters through to an external program * getopts can easily set shell variables you can use for parsing (impossible for an external process!) * you don't have to argue with several getopt implementations which had buggy concepts i…

Bash Hackers Wiki Frontpage - updated top10

Jan Schampera — 2010-07-03T23:39:07+02:00

URLupdate your links The Bash-Hackers Wiki human-readable documentationnot What would YOU like to see here? Stranger! Feel free to registerBash Hackers Wiki needs love page :V4:Bash 4 - a rough overview Scripting and general information * :V4: Bash v4 - a rough overview * :NEW: Scripting with style -- an assorted collection of style and optic hints * The basics of shell scripting * Traps for beginners * Bash's behaviour * Handling positional para…

Bash Hackers Wiki needs love - getopts idea

Jan Schampera — 2010-06-30T07:32:34+02:00

There are things to do. Always. Article optics and structure Target: A more or less unique structure (done) * Bash compound commands - bring all mentioned compound command description pages into a format * SYNOPSIS * DESCRIPTION * (with as many sub-topics as needed)

Small Bash- and commandline-related dictionary - use pagequery plugin from now on to index the dictionary

Jan Schampera — 2010-06-30T06:29:45+02:00

This small dictionary is not meant as complete super online computer and UNIX(r) dictionary, there are just small articles for every term for a quick reference on other wiki pages. To get a full description, you should query a real UNIX(r) dictionary or FAQ, this is just for the most important concepts.

filename - created

Jan Schampera — 2010-06-30T06:28:10+02:00

special parameter - created

Jan Schampera — 2010-06-30T06:26:53+02:00

positional parameter - created

Jan Schampera — 2010-06-30T06:25:52+02:00

variable - created

Jan Schampera — 2010-06-30T06:23:52+02:00

mtime - created

Jan Schampera — 2010-06-30T06:22:22+02:00

ctime - created

Jan Schampera — 2010-06-30T06:22:00+02:00

atime - created

Jan Schampera — 2010-06-30T06:17:51+02:00