http://wiki.bash-hackers.org/ 2012-02-06T09:29:04+01:00 http://wiki.bash-hackers.org/ http://wiki.bash-hackers.org/lib/tpl/arctic/images/favicon.ico text/html 2012-02-01T14:42:13+01:00 jaalto http://wiki.bash-hackers.org/scripting/posparams?rev=1328103733 Intro The day will come when you want to give arguments to your scripts. These arguments are reflected as the positional parameters inside your script. Most relevant special parameters are described below: Parameter(s)Description$0the first positional parameter, equivalent to argv[0] in C, see the first argument$FUNCNAME the function name (attention: inside a function, $0 is still the $0 of the shell, not the function name)$1 ... $9the argument list elements from 1 to 9${10} ... ${N}the argume… text/html 2012-01-31T15:41:13+01:00 ormaaj http://wiki.bash-hackers.org/commands/builtin/local?rev=1328020873 Synopsis Description TODO: Describe Bash scope rules in some detail. Point pages like The declare builtin command and those dealing with functions here for more details on locals and dynamic scope. This wiki could use a dedicated article about functions. Not sure how to organize all this information yet. Help if you can. ^_^ text/html 2012-01-30T22:30:53+01:00 sergey http://wiki.bash-hackers.org/howto/mutex?rev=1327959053 Why lock? Sometimes there's the need to ensure that a script is only executed one time. Imagine some cronjob to do something very important, which will fail or corrupt data if it accidently runs twice. In these cases, a form of MUTEX (mutual exclusion) is needed. text/html 2012-01-15T10:09:27+01:00 ormaaj http://wiki.bash-hackers.org/commands/builtin/caller?rev=1326618567 Synopsis caller [FRAMENUMBER] Description The caller builtin command is used to print execution frames of subroutine calls. Without giving a framenumber, the topmost execution frame information is printed ("who called me") wile linenumber and filename. text/html 2012-01-07T21:49:33+01:00 ormaaj http://wiki.bash-hackers.org/commands/builtin/printf?rev=1325969373 FIXME incomplete FIXME Stranger, this is a very big topic that needs experience - please extend the descriptions and correct the details if you can! Attention: This is about the Bash-builtin command printf - however, the description should be nearly identical for an external command that follows POSIX(r). text/html 2012-01-03T03:33:53+01:00 ormaaj http://wiki.bash-hackers.org/syntax/ccmd/conditional_expression?rev=1325558033 Synopsis [[ <EXPRESSION> ]] Description The conditional expression is meant as the modern variant of the classic test command. Since it is not a normal command, Bash doesn't need to apply the normal commandline parsing rules like recognizing && as command list operator. text/html 2012-01-01T20:21:38+01:00 ormaaj http://wiki.bash-hackers.org/start?rev=1325445698 The URL style of this wiki was changed. All old URLs should continue to work, but please update your links. New base is <http://wiki.bash-hackers.org> The Bash-Hackers Wiki This wiki is intended to hold documentations of any kind about the GNU Bash. The main motivation was to provide human-readable documentation and information to not force users to read every bit of the Bash manpage - which is hard sometimes. However, these docs here are not meant as newbie tutorial.