63 lines
1 KiB
Text
63 lines
1 KiB
Text
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# From: Seth Chaiklin <psykseth@aau.dk>
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# To: chet@ins.CWRU.Edu
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# Subject: bash functions (sorta)
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#
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# keep:
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# usage: keep program
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# declare the a program should be "kept". i.e. try to fg a stopped one
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# and only when that fails start a fresh program.
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#
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keep()
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{
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case $# in
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1|2) ;;
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*) echo "usage: keep [alias] program" 1>&2 ; return 1;;
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esac
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# progname
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pn=${1##*/}
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# set up an alias for the kept program
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if [ $# = 1 ]; then
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alias "$pn=fg $1 2>/dev/null || $1"
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else
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alias "$1=fg $2 2>/dev/null || $2"
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fi
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}
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#
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# unkeep:
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# usage: unkeep program
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# unset the alias set up by the keep function
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#
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unkeep()
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{
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if [ $# != 1 ]; then
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echo "usage: unkeep program"
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return 2
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fi
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# unset the alias for the kept program
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unalias "${1##*/}"
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}
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#
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# kept:
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# lists all kept programs in 'alias: program' form
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#
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kept()
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{
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alias | grep "fg.*2>" | sed "s/alias \(.*\)='fg.*||\(.*\)'$/\1:\2/"
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}
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# some things that should be kept
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#keep /usr/local/bin/emacs
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#keep e ${EDITOR:-/usr/local/bin/emacs}
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#keep edit ${EDITOR:-/usr/local/bin/emacs}
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#keep /usr/local/bin/emm
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