out.pid

来自「fastDNAml is an attempt to solve the sam」· PID 代码 · 共 32 行

#! /bin/sh
#
# Run a program, appending its process id to its output file name
#
outflag="-o"

if test $# -eq 2; then
    out="$2"
    set - "$1"
else
    while echo " $1" | grep "^ -" >/dev/null; do
        if test $# -lt 2;         then break
        elif test $1 = $outflag;  then out=$2; shift; shift
        elif test $1 = "-out";    then out=$2; shift; shift
        elif test $1 = "-";       then shift; break
        else echo "Bad flag:  $*" >&2; while test $# -gt 0; do shift; done; break
        fi
    done

    if test $# -lt 1; then
        comm=`echo $0 | sed -e 's&^.*/&&g'`
        echo "
Usage:  $comm  program  outfile
   or   $comm  $outflag outfile  program  [program_args]
" >&2
        exit
    fi
fi

echo "$$"
exec "$@" > "${out}.$$"