Commands by entertainyou (0)

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Replace strings in text
-e is the script function, it performs search and replace like vi, and -i is the edit the file in place.

find the 10 latest (modified) files
order the files by modification (thanks stanishjohnd) time, one file per output line and filter first 10

Create a backup of file being edited while using vi
At the start of a vi session and *before* saving any changes use ":!cp % %-" to make a backup of the current file being edited. example: vi /data/some/long/path/file :!cp% %- creates /data/some/long/path/file-

Parse m3u playlist file for total time
Parse an m3u file with seconds for each item and output the length of the entire playlist

Set executable permissions on a file under Subversion
This avoids the "chmod +x filename" after performing a check out or export. From http://snipplr.com/view/5277/set-executable-permissions-on-a-file-under-subversion/

find xargs mv

Monitor system load and print out top offending processes
This checks the system load every second and if it's over a certain threshold (.8 in this example), it spits out the date, system loads and top 4 processes sorted by CPU. Additionally, the \a in the first echo creates an audible bell.

create a backup for all directories from current dir
Create backup (.tar.gz) for all first-level directory from current dir.

Put the machine to sleep after the download(wget) is done
[Note: This command needs to be run as root]. If you are downloading something large at night, you can start wget as a normal user and issue the above command as root. When the download is done, the computer will automatically go to sleep. If at any time you feel the computer should not go to sleep automatically(like if you find the download still continuing in the morning), just create an empty file called nosleep in /tmp directory.

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