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Full Discussion: Append to PATH in smart way.
Top Forums Shell Programming and Scripting Append to PATH in smart way. Post 302449304 by Scott on Monday 30th of August 2010 06:03:36 AM
Old 08-30-2010
Hi.

The leading : is harmless enough.

Code:
PATH=${PATH:+$PATH:}/new/path/to/bin

 

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SYSTEMD-PATH(1) 						   systemd-path 						   SYSTEMD-PATH(1)

NAME
systemd-path - List and query system and user paths SYNOPSIS
systemd-path [OPTIONS...] [NAME...] DESCRIPTION
systemd-path may be used to query system and user paths. The tool makes many of the paths described in file-hierarchy(7) available for querying. When invoked without arguments, a list of known paths and their current values is shown. When at least one argument is passed, the path with this name is queried and its value shown. The variables whose name begins with "search-" do not refer to individual paths, but instead to a list of colon-separated search paths, in their order of precedence. OPTIONS
The following options are understood: --suffix= The printed paths are suffixed by the specified string. -h, --help Print a short help text and exit. --version Print a short version string and exit. EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise. SEE ALSO
systemd(1), file-hierarchy(7) systemd 237 SYSTEMD-PATH(1)
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