{"id":1024,"date":"2010-08-05T09:33:59","date_gmt":"2010-08-05T13:33:59","guid":{"rendered":"http:\/\/linuxhostingsupport.net\/blog\/?p=1024"},"modified":"2013-03-20T08:43:17","modified_gmt":"2013-03-20T12:43:17","slug":"how-to-set-or-enable-timestamp-for-the-previously-executed-commands-in-linux","status":"publish","type":"post","link":"https:\/\/linuxhostingsupport.net\/blog\/how-to-set-or-enable-timestamp-for-the-previously-executed-commands-in-linux","title":{"rendered":"How to set OR enable Timestamp for the previously executed commands in Linux?"},"content":{"rendered":"

Linux provides a command called “history” to view the previously executed commands on shell. By default, the “history” command display only the commands that were executed but not the date and time when they were executed. <\/strong><\/p>\n

To display the time and date of the previously executed commands, you need to set the “HISTTIMEFORMAT” variable.<\/span> The variable has to be set in the users profile file so to take effect on each session.
\n<\/strong><\/p>\n

To set the “HISTTIMEFORMAT” variable, SSH to your server and execute:<\/p>\n

\n
# export HISTTIMEFORMAT=\"[%F] [%T] \"<\/span><\/pre>\n<\/blockquote>\n
You can also insert the above line at the end of the .bash_profile file<\/p>\n
\n
# vi \/root\/.bash_profile<\/span><\/pre>\n<\/blockquote>\n
Once the file is saved, open a new SSH session and execute the ‘history’ command to view the timestamp of the previously executed commands.<\/p>\n
For example:<\/p>\n
\n
root@server [~]# history<\/span>\r\n 1068\u00a0 [2010-08-05] [07:17:04] ps -auxf\r\n 1069\u00a0 [2010-08-05] [07:17:06] top c\r\n 1070\u00a0 [2010-08-05] [07:17:35] ll\r\n 1071\u00a0 [2010-08-05] [07:37:51] ls -la\r\n 1072\u00a0 [2010-08-05] [07:41:37] cat \/root\/.bash_profile\r\n 1073\u00a0 [2010-08-05] [07:41:47] cd<\/pre>\n<\/blockquote>\n
The commands in the above output is just an example.<\/p>\n","protected":false},"excerpt":{"rendered":"
Linux provides a command called “history” to view the previously executed commands on shell. By default, the “history” command display only the commands that were executed but not the date and time when they were executed.
\nTo display the time and date of the previously executed commands, you need to set the “HISTTIMEFORMAT” variable. The variable has to be set in the users profile file so to take effect on each session.<\/p>\n
To set the “HISTTIMEFORMAT” variable, SSH to your server and execute:<\/p>\n
# export HISTTIMEFORMAT=”[%F] [%T] ”<\/p>\n
You can also […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[1015,1011,1012,1013,1014,1009,1008,1010],"_links":{"self":[{"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/posts\/1024"}],"collection":[{"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/comments?post=1024"}],"version-history":[{"count":7,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/posts\/1024\/revisions"}],"predecessor-version":[{"id":2228,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/posts\/1024\/revisions\/2228"}],"wp:attachment":[{"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/media?parent=1024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/categories?post=1024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/linuxhostingsupport.net\/blog\/wp-json\/wp\/v2\/tags?post=1024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}