Check disk space usage and sort by size

du -ksl * | sort -nr

Remove recursively all files with wiliecard on AIX

find /home/pvcs/cassad/a \( -name '*.txt' \) -exec \rm {} \;

For example to find file in last 2 months (60 days) you need to use -mtime +60 option.

* -mtime +60 means you are looking for a file modified 60 days ago.

* -mtime -60 means less than 60 days.

* -mtime 60 If you skip + or - it means exactly 60 days.

Find text files that were last modified 60 days ago, use

$ find /home/you -iname "*.txt" -mtime -60 -print

Display content of file on screen that were last modified 60 days ago, use

$ find /kunden/homepages/htdocs -iname "*.txt" -mtime -2 -exec cat {} \;

Count total number of files using wc command

$ find /home/you -iname "*.txt" -mtime -60 | wc -l

You can also use access time to find out pdf files. Following command will print the list of all pdf file that were accessed in last 60 days:

$ find /home/you -iname "*.pdf" -atime -60 -type -f

List all mp3s that were accessed exactly 10 days ago:

$ find /home/you -iname "*.mp3" -atime 10 -type -f

There is also an option called -daystart. It measure times from the beginning of today rather than from 24 hours ago. So, to list the all mp3s in your home directory that were accessed yesterday, type the command

$ find /home/you -iname "*.mp3" -daystart -type f -mtime 1

REMOVE ^M CHARACTERS

using VI Editor USE : %s/.$// command in vi editor to delete ^M characters)

For example, ^C is represented by ?\003?, and ^M is represented by ?\015?.

Use the following command to remove ^M characters:

tr -d "\015" newfile

Example: tr ?d ?\015? goodfile.txt