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//usr/share/doc/bash-3.2/scripts/nohup.bash
# # BASH VERSION OF nohup COMMAND # ctype() { path=$(builtin type -p $cmd | sed 1q) if [ -n "$path" ]; then echo "$path" return 0 else case "$cmd" in */*) [ -x "$cmd ] && { echo "$cmd" ; return 0; } ;; *) case "$(builtin type -t $cmd)" in "") return 1;; *) echo "$cmd" ; return 0;; esac ;; esac fi return 1 } trap '' HUP # ignore hangup command=$(ctype "$1") oldmask=$(umask) umask u=rw,og= # default mode for nohup.out exec 0< /dev/null # disconnect input if [ -t 1 ]; then # redirect output if necessary if [ -w . ]; then echo 'Sending output to nohup.out' exec >> nohup.out else echo "Sending output to $HOME/nohup.out" exec >> $HOME/nohup.out fi fi umask "$oldmask" # direct unit 2 to a file if [ -t 2 ]; then exec 2>&1 fi # run the command case $command in */*) exec "$@" ;; time) eval "$@" ;; *) "$@" ;; esac