diff options
Diffstat (limited to 'cil/bin/teetwo')
-rwxr-xr-x | cil/bin/teetwo | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/cil/bin/teetwo b/cil/bin/teetwo new file mode 100755 index 00000000..2aa68fa5 --- /dev/null +++ b/cil/bin/teetwo @@ -0,0 +1,36 @@ +#!/bin/bash +# run a command, sending stdout to one file and stderr to another, +# but also sending both to this process' stdout/stderr, respectively + +if [ "$3" = "" ]; then + echo "usage: $0 stdout-file stderr-file cmd [args..]" + exit 0 +fi + +stdoutFile="$1" +stderrFile="$2" +command="$3" +shift +shift +shift + +result=0 +handler() { + # this signal means the underlying command exit erroneously, + # though we don't know the code + echo "The command failed!" + result=2 +} +trap handler SIGUSR1 + +# dup my stdout/err on fd 3,4 +exec 3>&1 +exec 4>&2 + + +# run the command with tees to duplicate the data +mypid=$$ +# echo "mypid = $mypid, command=$command, args=$@, stdout=$stdoutFile, stderr=$stderrFile" +(("$command" "$@" || kill -s USR1 $mypid) | tee "$stdoutFile" >&3) 2>&1 | tee "$stderrFile" >&4 + +exit $result |