From abed667be3e8066d44138493c155445a8caaca2d Mon Sep 17 00:00:00 2001 From: bonnie Date: Sat, 15 Feb 2020 23:53:37 +0800 Subject: [PATCH 1/2] add to "time" - sleep a random duration --- README.md | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/README.md b/README.md index e12af62..be2df64 100644 --- a/README.md +++ b/README.md @@ -1076,6 +1076,9 @@ time echo hi ##### Wait for some time (e.g 10s) ```bash sleep 10 + +# wait for random duration (e.g. sleep 1-5 second, like adding a jitter) +sleep $[ ( $RANDOM % 5 ) + 1 ] ``` ##### Log out your account after a certain period of time (e.g 10 seconds) @@ -2779,11 +2782,6 @@ clear # or simply Ctrl+l ``` -##### Sleep awhile or wait for a moment or schedule a job -```bash -sleep 5;echo hi -``` - ##### Backup with rsync ```bash rsync -av filename filename.bak From 77c45a87842b0ab7fc2773ac43ebcb2f2d2919e9 Mon Sep 17 00:00:00 2001 From: Fazle Arefin Date: Sun, 24 May 2020 00:12:17 +1000 Subject: [PATCH 2/2] Use find to find and delete empty files --- README.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/README.md b/README.md index be2df64..4211c1c 100644 --- a/README.md +++ b/README.md @@ -837,6 +837,10 @@ find . -name "*.mso" -size -74c -delete # M for MB, etc ``` +##### Find and delete empty (0 byte) files +```bash +find . -type f -empty -delete +``` ## Condition and loop [[back to top](#handy-bash-one-liners)]