More and more often I come across a scenario where I need to repeat the shell command until it succeeds. Here are a couple of examples:<\/p>\n\n\n\n
Sure, I can always press the up arrow key and Enter, to repeat the last command from the history. But it is a tiny bit annoying.<\/p>\n\n\n\n
Today I came across this little trick<\/a>, that solves the problem. Add the following function to your .bashrc<\/em>:<\/p>\n\n\n Now you can run “rpt” to repeat the latest command until it succeeds.<\/p>\n\n\n\n Handy!<\/p>\n\n","protected":false},"excerpt":{"rendered":"\n More and more often I come across a scenario where I need to repeat the shell command until it succeeds. Here are a couple of examples: Reboot a server. Try to remotely login to it via ssh. This fails until the server actually boots up. Keep trying until connected. Start an application that writes to … Continue reading Bash trick: Repeat last command until success<\/span><\/a><\/p>\n\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Bash trick: Repeat last command until success #linux #sysadmin #devops #CLI #bash #shell #productivity","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false,"_links_to":"","_links_to_target":""},"categories":[1,6,133,62],"tags":[3098,1960,1079],"keyring_services":[],"class_list":["post-42765","post","type-post","status-publish","format-standard","hentry","category-general","category-linux","category-sysadmin","category-technology","tag-bash","tag-command-line","tag-productivity"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\nrpt() {\n CMD=$(fc -ln | tail -n 2 | head -n 1)\n echo "repeating until success: $CMD"\n until $CMD\n do\n sleep 1\n done\n}\n<\/pre><\/div>\n\n\n