diff options
| -rw-r--r-- | _profile | 3 | ||||
| -rw-r--r-- | _zsh/40-functions.zsh | 6 |
2 files changed, 7 insertions, 2 deletions
@@ -31,8 +31,9 @@ _path_append() { } ## Check the existence/accessibility of a command +# Credit: https://stackoverflow.com/a/677212/4856091 _exists() { - which $1 &> /dev/null + command -v "$1" >/dev/null 2>&1 } ## Check whether the program is running diff --git a/_zsh/40-functions.zsh b/_zsh/40-functions.zsh index 77db01c..2b078ed 100644 --- a/_zsh/40-functions.zsh +++ b/_zsh/40-functions.zsh @@ -5,8 +5,12 @@ # ## Check the existence/accessibility of a command +# Credit: https://stackoverflow.com/a/677212/4856091 function exists() { - which $1 &> /dev/null + # 'command' is POSIX-compliant and more portable; + # 'hash' only searches for commands; + # while 'type' also considers builtins and keywords. + type "$1" >/dev/null 2>&1 } ## Check whether the program is running |