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Commands by danam

Commands by danam from sorted by
Terminal - Commands by danam - 8 results
find . -name <pattern> -ls | awk 'BEGIN {i=0}; {i=i+$7}; END {print i}'
2010-02-05 14:47:27
User: danam
Functions: awk find
Tags: disk usage
2
Up
Down
Determine space taken by files of certain type

Just how much space are those zillions of database logs taking up ? How much will you gain on a compression rate of say 80% ? This little line gives you a good start for your calculations.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
rsync -a --link-dest=/media/backup/$HOSTNAME/$PREVDATE '--exclude=/[ps][ry][os]' --exclude=/media/backup/$HOSTNAME / /media/backup/$HOSTNAME/$DATE/
2010-01-30 08:36:41
User: danam
Functions: rsync
4
Up
Down
How to backup hard disk timely?

Creates files in $DATE and hardlinks existing files to $PREVDATE. Thus full backup in each directory. Only drawback is changed modification time. Recommend a wrapper script to determine $DATE and $PREVDATE. Works like a charm. (Dirvish handrolled)

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
PROMPT_COMMAND="history -a"
2009-10-21 12:33:25
User: danam
2
Up
Down
Commit command to history file immedeately after execution

This could be added to .bashrc. Background: Linux usually saves history only on clean exit of shell. If shell ends unclean, history is lost. Also numerous terminals might confuse their history. With this variable set, history is immedeately written, accessible to all other open shells. (Of course other commands can also be run thus.)

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ls .[!.]*
2009-09-29 13:50:13
User: danam
Functions: ls
-2
Up
Down
List dot-files and dirs, but not "." and ".."

Although rm is protected against it, there are many commands that would wreak havoc on entering the obvious ".*" to address "dot-files". This sweet little expression excludes the dirs "." and ".." that cause the problems.

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
# for i in $(seq 1 25); do dd if=/dev/urandom of=<your disk> bs=1M ; done
2009-09-29 07:12:34
User: danam
Functions: dd seq
Tags: dangerous
3
Up
Down
Securely destroy data on given device

Intentional hash in the beginning. May run a looong time. Wipes your data for real. Was meant to be /dev/urandom - I mistyped it. :-)

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
grep -r <pattern> * .[!.]*
2009-09-22 14:57:40
User: danam
Functions: grep
3
Up
Down
Search for a string inside all files in the current directory

Searches all files,dirs (also hidden) recursively

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
echo {'1,2,3',4}" o'clock" ROCK
2009-09-15 10:12:49
User: danam
Functions: echo
4
Up
Down
Happy Days

AFAIR this is the wording ;)

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type <filename>
2009-09-14 09:37:23
User: danam
Functions: type
Tags: shell tr for PATH break
4
Up
Down
search for a file in PATH

Also searches for aliases and shell builtins

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate