pathmerge

help output

Usage: pathmerge [OPTIONS] [paths]...

Arguments:
  [paths]...  list of paths to include

Options:
  -d, --delimiter <delimiter>  Specify delimiter to use, bash ':', fish ' ' [default: :]
  -p, --path <path>            Path string [env: PATH=/home/user/bin:/usr/bin:/usr/local/bin:/usr/local/sbin]
  -s, --sort                   If the resulting output should be sorted
  -h, --help                   Print help
  -V, --version                Print version

Example Usage

Pull PATH from env and append

PATH="/path1:/path2:/path3"
PATH="$(pathmerge /path4)"
echo $PATH
# output
/path1:/path2:/path3:/path4

Provide PATH and append

NEWPATH="$(pathmerge --path /a:/b:/c /z)"

echo $NEWPATH
# output
/a:/b:/c:/z

Deduplicate occurs automatically

UGLYPATH="/a:/b:/c:/a:/a:/c:/b:/c"
CLEANPATH="$(pathmerge --path $UGLYPATH)"

echo $CLEANPATH
# output
/a:/b:/c

Merge/Deduplicate based on a different delimiter

PATH="/a /b /c /c /c"
NEWPATH="$(pathmerge --delimiter ' ' /z)"

echo $NEWPATH
# output
/a /b /c /z

Sorting

PATH="/c:/a:/b"
NEWPATH="$(pathmerge --sort)"

echo $PATH
# output
/a:/b:/c

Additional information

• Specifying the delimiter does not cause the output to change the delimiter, only what the logic triggers off of.
• pathmerge does not modify anything in the shell or environment, it only allows you to manipulate PATH formatted strings and outputs those strings. It is still up to the user to push those strings into their appropriate environment variable. e.g. PATH=$(pathmerge) to read from env, Deduplicate then push back into the PATH variable.
• pathmerge is primarily expected to be called/used by .profiles and .*rc files.

NIX

WIP