Improve commenting/exit handling in binscripts

1 files changed, 8 insertions, 0 deletions

diff --git a/bin/sls b/bin/sls
index df8625de..d3c67cc7 100755
--- a/bin/sls
+++ b/bin/sls
@@ -1,12 +1,20 @@
 #!/bin/sh
+# Print hostnames from ssh_config(5) files, defaulting to the usual paths
+
+# If we weren't given a file explicitly, we'll try to read both /etc/ssh_config
+# and ~/.ssh_config in that order if they exist
 if [ "$#" -eq 0 ] ; then
     for cfg in /etc/ssh_config "$HOME"/.ssh/config ; do
         [ -e "$cfg" ] || continue
         set -- "$@" "$cfg"
     done
 fi
+
+# If we still have no files to read, bail out and warn the user
 if [ "$#" -eq 0 ] ; then
     printf >&2 'sls: ssh_config(5) paths not found, need argument\n'
     exit 1
 fi
+
+# Otherwise, we can run slsf(1) over the ones we did collect
 slsf -- "$@"