- added short form for command as comment

- added useful functions for notification after a command has failed and/ or succeeded

home_external/.bash_aliases

@@ -4,7 +4,7 @@ fi
 
 DEFAULT_RSYNC='--verbose --recursive --progress --delay-updates --human-readable --links --hard-links --perms'
 
-alias l='ls -l -v --all --human-readable --classify --group-directories-first'
+alias l='ls -l -v --all --human-readable --classify --group-directories-first' # -lvahF --group-directories-first
 alias r='reset'
 alias ..='cd ..'
 alias refresh_bashrc='. ~/.bashrc' # alternatively: 'source ~/.bashrc'
@@ -17,3 +17,56 @@ alias nnn='nnn -dHrR'
 alias nn='n -dHrR'
 alias finds='find $* 2>/dev/null'
 alias c='clear'
+
+
+# executes command and notifies upon failure
+execute() {
+   dir="$(pwd)";
+   dir=${dir##*/};
+   if [ -n "$2" ]; then
+      errLog=$2
+   else
+      errLog="execution of \"$1\" failed"
+   fi
+
+   if ! $1; then
+      notifyError "$dir: $errLog";
+      return 1;
+   fi
+}
+
+
+# executes command and notifies upon success or failure
+executeAndNotify () {
+   dir="$(pwd)";
+   dir=${dir##*/};
+   if [ -n "$2" ]; then
+      winLog=$2
+   else
+      winLog="execution of \"$1\" succeeded"
+   fi
+
+   if ! execute "$1" "$3"; then # arguments in quotes so they are interpreted as ONE argument each by execute()
+      return 1;
+   fi
+   notifyInfo "$dir: $winLog"
+}
+
+
+# find file but don't print errors (e.g. can't access directory etc.)
+: 'seems to be working as alias as well:
+finds () {
+   find $* 2>/dev/null
+}'
+
+
+# sends a desktop-notification with an icon signalling an error
+notifyError () {
+   notify-send "$1" --icon=data-warning
+}
+
+
+# sends a desktop-notification with an icon signalling a simple information
+notifyInfo () {
+   notify-send "$1" --icon=preferences-desktop-notification
+}