Commands by pepin

Commands by pepin (10)

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CLFUContest : Check which process consume more than 10% of the cpu (configurable)
This is sample output - yours may be different.
1

pidstat -t | sed 's/,/./4' | awk -v seuil='10.0' '{if (NR>3 && $8>seuil) print }'

pepin · 2015-09-19 07:41:31 12
ps -ef | grep PROCESS | grep -v grep | awk '{system "kill -9" $2}
This is sample output - yours may be different.
-6

ps -ef | grep PROCESS | grep -v grep | awk '{system "kill -9" $2}

pepin · 2015-03-21 21:25:07 11
Batch file suffix renaming

of course, replace the "-" after / by the character you wish. a dot must by protected by a backslash, as it is a regexp. it's the same result as the command proposed. but if there is more than a dash in the name, only the part before the first dash is kept... so that's not an "extension renaming" command.
This is sample output - yours may be different.
-2

rename -n "s/-.*//" *

pepin · 2011-03-06 12:08:39 6
Numerate files, rename files in a directory by incremental number
This is sample output - yours may be different.
-5

declare -i i=0 ; for file in * ; do i=$[$i+1] ; mv "$file" $i; done

pepin · 2010-08-26 12:40:58 4
delete all leading and trailing whitespace from each line in file
This is sample output - yours may be different.
1

sed 's/^[ \t]*//;s/[ \t]*$//' -i file

pepin · 2010-08-23 22:02:24 6
Find files and list them with a readable informative output
This is sample output - yours may be different.
-3

find . -type f | sed 's,.*,stat "&" | egrep "File|Modify" | tr "\\n" " " ; echo ,' | sh | sed 's,[^/]*/$.*$. Modify: $....-..-.. ..:..:..$.*,\2 \1,' | sort

pepin · 2010-05-27 22:30:18 4
Kill multiple instances of a running process
This is sample output - yours may be different.
2

killall -9 rouge-process

pepin · 2010-05-09 22:41:22 5

Reconstruct a malformed authorizated_keys for ssh

when someone mail you his ssh public key, and the lines are broken with '\n', you can reconstruct a new file with one key by line with this command. Show Sample Output

pepin · 2010-02-19 08:32:35 4

rename all jpg files with a prefix and a counter
This is sample output - yours may be different.
3

ls *.jpg | grep -n "" | sed 's,.*,0000&,' | sed 's,0*$...$:$.*$.jpg,mv "\2.jpg" "image-\1.jpg",' | sh

pepin · 2010-02-16 23:59:28 4
Count files created by date/modification
This is sample output - yours may be different.
0

find . -type f -exec stat \{\} \; | grep Modify: | awk '{a[$2]++}END{for(i in a){print i " : " a[i] }}' | sort

pepin · 2010-01-23 07:55:16 7

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Create package dependency graph

Create Debian package dependency graph using GraphViz

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

Delete all files older than X in given path

This will find all files under the path "." which are older than 10 days, and delete them. If you wish to use the "rm" command instead, replace "-delete" with "-exec rm [options] {} \;"

File rotation without rename command

Rotates log files with "gz"-extension in a directory for 7 days and enumerates the number in file name. i.e.: logfile.1.gz > logfile.2.gz I needed this line due to the limitations on AIX Unix systems which do not ship with the rename command.

Rename files in batch

Pipe stdout and stderr, etc., to separate commands

You can use [n]> combined with >(cmd) to attach the various output file descriptors to be the input of different commands.

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

sort lines by length

making it "sound" more "natural" language like -- additionally sorting the longest words alphabetically: this approach is using: * to get at all lines of input * post-"for" structure * short-circuit-or in sort: if the lengths are the same, then sort alphabetically otherwise don't even evaluate the right hand side of the or * -C sets all input and ouput channels to utf8

Run a command as root, with a delay

$ sleep 1h ; sudo command or $ sudo sleep 1h ; sudo command won't work, because by the time the delay is up, sudo will want your password again.

Create MySQL-Dump, copy db to other Server and upload the db.

This option makes a copy of your current db and via ssh it transfer to the server you specify and upload the database to the specific User & Password you specify (Note the db User & Pass, can be different from the one you use in the other server) If you are going to use "localhost" as your main db remove (-h) and youst add "localhost"

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