Created
June 17, 2013 08:41
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run only one process a time.
if_not_runnig && cmd
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| #!/usr/bin/env bash | |
| # exit when no parameter provided | |
| test -z "$*" && exit 0 | |
| id=`echo "$*" | md5sum | cut -d " " -f 1` | |
| idfile="/tmp/$id" | |
| if [ ! -e $idfile ]; then | |
| touch $idfile | |
| $@ | |
| rm $idfile | |
| exit -1 | |
| fi | |
| exit 0 |
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