mirror of https://github.com/A2osX/A2osX.git
77 lines
1.3 KiB
Bash
77 lines
1.3 KiB
Bash
#!/bin/sh
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#
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# which
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#
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# locates a program in path
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#
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set -E
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if [ -z $1 ] or [ $1 = "-h" ] or [ $1 = "-H" ]
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echo "Usage : which [options] program ..."
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echo " -A show all found"
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echo " -S no output, 0 if found, 1 if not"
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exit 120
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fi
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set T = "${TEMP}which$$.tmp"
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set A = 0
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set F = 0
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set S = 0
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set L = 1
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# get options
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while [ ${L} -eq 1 ]
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if [ $1 = "-a" ] or [ $1 = "-A" ]
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set A = 1
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shift
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else
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if [ $1 = "-s" ] or [ $1 = "-S" ]
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set S = 1
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shift
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else
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set L = 0
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fi
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fi
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loop
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# split dirs in path
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echo "${PATH}:." > ${T}
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set L = `sed "s/:/ /" ${T}`
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rm -q -c ${T}*
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# find instances
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while [ $# -gt 0 ]
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set F = ${F} + 1
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for D in ${L}
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# check for file
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if [ -f ${D}$1 ]
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set T = 0
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else
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set T = 1
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fi
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# process result
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if [ ${T} -eq 0 ]
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if [ ${S} -eq 0 ]
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echo "${D}$1"
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fi
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set F = ${F} - 1
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if [ ${A} -eq 0 ]
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break
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fi
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fi
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next
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shift
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loop
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# -s numeric result
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if [ ${S} -gt 0 ]
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if [ ${F} -eq 0 ]
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exit 0
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else
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exit 70
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fi
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