You want your script to execute without overlapping another execution.
Entries Tagged as 'OS X'
bash shell script to manage pid file creation/deletion
October 30th, 2009 · 1 Comment · Linux, OS X
Tags: bash shell script pid
bash shell script to use getopts with gnu style long positional parameters
October 29th, 2009 · 1 Comment · Linux, OS X
Problem: You want to support –really-long-option-names in your bash script and getopts won’t do it. More problems: You don’t want to use getopt because you want cross platform support or your platform isn’t supported. More problems than that: I can’t help with existential issues. Solution: Rewrite the long options into short options and then use [...]
sed script to trim leading and trailing spaces
February 25th, 2009 · No Comments · Linux, OS X
i couldn’t find this anywhere, so just to make it generally public, this is my trim function: sed ‘s/^[[:space:]]*\(.*\)[[:space:]]*$/\1/’ For who’s looking, this command says: from beginning of line ^ take any amount of whitespace [[:space:]] then create a group containing anything \(.*\) up to whitespace at the end of the line [[:space:]]*$ replace this [...]
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