shtool-path(1)
GNU shtool command dealing with shell path variables
SYNOPSIS
shtool path
[-s|--suppress]
[-r|--reverse]
[-d|--dirname]
[-b|--basename]
[-m|--magic]
[-p|--path path]
str [str ...]
DESCRIPTION
This command deals with shell $PATH variables. It can find a program
through one or more filenames given by one or more str arguments.
It prints the absolute filesystem path to the program displayed on
"stdout" plus an exit code of 0 if it was really found.
OPTIONS
The following command line options are available.
- -s, --suppress
-
Suppress output. Useful to only test whether a program exists with the
help of the return code.
- -r, --reverse
-
Transform a forward path to a subdirectory into a reverse path.
- -d, --dirname
-
Output the directory name of str.
- -b, --basename
-
Output the base name of str.
- -m, --magic
-
Enable advanced magic search for ""perl"`` and ''"cpp"".
- -p, --path path
-
Search in path. Default is to search in $PATH.
EXAMPLE
# shell script
awk=`shtool path -p "${PATH}:." gawk nawk awk`
perl=`shtool path -m perl`
cpp=`shtool path -m cpp`
revpath=`shtool path -r path/to/subdir`
HISTORY
The
GNU shtool path command was originally written by Ralf S.
Engelschall <
[email protected]> in 1998 for
Apache. It was
later taken over into
GNU shtool.