Commands by dstiller

Commands by dstiller (4)

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Grep for regular expression globally, list files and positions.

Grep for expression globally, list files and positions. "Hirn" is a nice german crib meaning "Brain". :-) Afterwards you can edit the line you want with "vi ./p_common/common_main.pbt +1550" Show Sample Output
This is sample output - yours may be different.
```
$ find . -name "*.pbt" -exec grep -Hirn "declareObject.*Common_Down" {} \;
./p_common/common_main.pbt:1550: PBE:declareObject("PBETable", "Common_Download", "tbl_Media", "id");
```
2

find . -name "*.pbt" -exec grep -Hirn "declareObject.*Common_Down" {} \;

dstiller · 2011-09-02 07:51:51 4
Regex to remove HTML-Tags from a file

This regular expression removes all HTML-Tags from the file.
This is sample output - yours may be different.
6

sed -e :a -e 's/<[^>]*>//g;/</N;//ba' index.html

dstiller · 2009-08-14 09:55:00 4
Repeat last executed command

I don't know why this ain't written as simply as it is. I always see it's just used as parameter, like: vi `!!` But i use it to repeat a command, as i always work on several shells and check the result of one shell on a second.
This is sample output - yours may be different.
-3

!!

dstiller · 2009-07-16 08:07:35 5
Generate Random Passwords

If you want a password length longer than 6, changing the -c6 to read -c8 will give you 8 random characters instead of 6. To end up with a line-feed, use this with echo: # echo `< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c6` Modern systems need higher strenght, so add some special characters: # < /dev/urandom tr -dc '12345!@#$%qwertQWERTasdfgASDFGzxcvbZXCVB' | head -c8
This is sample output - yours may be different.
11

< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c6

dstiller · 2009-02-24 09:43:40 25

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Print IP of any interface. Useful for scripts.

Generate a QR code in the terminal

is today the end of the month?

for all who don't have the watch command

#Usage: watch timeinsecond "command"

Convert & rename all filenames to lower case

Cleanup firefox's database.

Sqlite database keeps collecting cruft as time passes, which can be cleaned by the 'vacuum;' command. This command cleans up the cruft in all sqlite files relating to the user you have logged in as. This command has to be run when firefox is not running, or it will exit displaying the pid of the firefox running.

Find directories under home directory with 777 permissions, change to 755, and list them on console

Get information about memory modules

To take information about the characteristics of the installed memory modules.

Show a Package Version on Debian based distribution

if you don't want to show string "version?, then use awk or cut filter it: apt-cache show pkgname | grep -i "version:" | awk '{ print $2 }' we can also use regex to search many packages and show their versions: apt-cache search pkgregex | grep -i "version:"

Big Countdown Clock in seconds

Requires figlet. Other than that, this should be portable enough across all the Bourne-compatible shells (sh, bash, ksh, zsh, etc). Produces a massive number using figlet that counts down the number of seconds for any given minute interval. For example, here's a 4-minute timer: $ i=$((4*60)); while [ $i -gt 0 ]; do clear; echo $i | figlet; sleep 1; i=$(($i-1)); done; And a 1-minute timer: $ i=$((1*60)); while [ $i -gt 0 ]; do clear; echo $i | figlet; sleep 1; i=$(($i-1)); done;

Stay in the loop…

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