Speed up builds and scripts, remove duplicate entries in $PATH. Users scripts are oftern bad: PATH=/apath:$PATH type of thing cause diplicate.

glu() { (local IFS="$1"; shift && echo "$*") }; repath() { ( _E=`echo "${PATH//:/$'\n'}" | awk '!x[$0]++'`; glu ":" $_E ) ; } ; PATH=`repath` ; export PATH
Thanks to the authors of: awk '!x[$0]++' <file> and the author of: joinargs() { (local IFS="$1"; shift && echo "$*") } and others, we can have a fast Linux or android. IMPORTANT if you find a priority order problem in PATH you can push a path directory to the front without duplication as follows: PATH=/bin:$PATH then ... Check duplication with: echo $PATH|tr : '\n'|sort|uniq -d Finally do a very neat line by line list of $PATH: echo "${PATH//:/$'\n'} The speed up is very noticeable for android, and builds on Linux Ubantu are much faster with make and scripts. I will update the command on request. Timothy from SONY

2
By: Timothy
2011-06-09 12:11:18

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