zsh: add function is_running()

2 files changed, 6 insertions, 1 deletions

diff --git a/_profile b/_profile
index 806b7e2..237a91c 100644
--- a/_profile
+++ b/_profile
@@ -37,7 +37,7 @@ _exists() {
 
 ## Check whether the program is running
 _running() {
-    pgrep -x -u ${USER} $1 &> /dev/null
+    pgrep -x -u "${USER}" $1 &> /dev/null
 }
 
 
diff --git a/_zsh/40-functions.zsh b/_zsh/40-functions.zsh
index cd9ebc9..77db01c 100644
--- a/_zsh/40-functions.zsh
+++ b/_zsh/40-functions.zsh
@@ -4,10 +4,15 @@
 # execute 'functions <func_name>' to show function details.
 #
 
+## Check the existence/accessibility of a command
 function exists() {
     which $1 &> /dev/null
 }
 
+## Check whether the program is running
+function is_running() {
+    pgrep -x -u "${USER}" $1 &> /dev/null
+}
 
 function zsh_recompile() {
     autoload -U zrecompile