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Commands by nottings

Commands by nottings from sorted by
Terminal - Commands by nottings - 14 results
tr -dc A-Za-z0-9_ < /dev/urandom | head -c 10 | xargs
2012-10-17 14:04:14
User: nottings
Functions: head tr
7
Up
Down
generate a randome 10 character password
Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
echo "export LESS='FiX'" >> ~/.bashrc
2010-11-08 21:58:25
User: nottings
Functions: echo
7
Up
Down
stop man page content from disappearing on exit

stop man page content from disappearing on exit

echo "export LESS='FiX'" >> ~/.bashrc

man bash

'q'uit out of man page

content will stay on screen

Show sample output | Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
echo ${PIPESTATUS[@]}
2010-11-01 21:46:58
User: nottings
Functions: echo
4
Up
Down
Show exit status of all portions of a piped command eg. ls |this_doesn't_exist |wc
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ls |tee >(grep xxx |wc >xxx.count) >(grep yyy |wc >yyy.count) |grep zzz |wc >zzz.count
2010-10-25 17:49:14
User: nottings
Functions: grep ls tee wc
7
Up
Down
direct a single stream of input (ls) to multiple readers (grep & wc) without using temporary files
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ps -o lstart <pid>
2010-10-18 17:09:02
User: nottings
Functions: ps
3
Up
Down
display date of last time a process was started in `date` format

STARTED

Mon Oct 18 04:02:01 2010

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
bash -x ./post_to_commandlinefu.sh
2009-02-25 19:10:21
User: nottings
Functions: bash
23
Up
Down
runs a bash script in debugging mode
Show sample output | Comments (7) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ctrl + \
2009-02-25 18:52:57
User: nottings
7
Up
Down
skip broken piece of a loop but not exit the loop entirely

useful for loops like for i in $(cat list_of_servers); do ssh -q $i hostname; done

if there is an unreachable server, you can just press ctrl + \ to skip that server and continue on with the loop

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ps auxww |grep " dd " |grep -v grep |awk '{print $2}' |while read pid; do kill -USR1 $pid; done
2009-02-19 22:46:06
User: nottings
Functions: grep kill ps read
1
Up
Down
check the status of 'dd' in progress

Check the status of a 'dd' in progress. useful when creating very large dumps and want to see how far along it is. Sending the kill -USR1 forces dd to dump it's progress to stdout

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
x11vnc -display :0 -auth $(ps -ef|awk '/xauth/ {print $15}'|head -1) -forever -bg &
2009-02-19 18:55:54
User: nottings
Functions: ps
4
Up
Down
connect to X login screen via vnc

the $15 may change for you depending on your distro, etc...

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
while read line; do echo "$(date),$(hostname),$line"; done < somefile.txt
2009-02-19 18:48:12
User: nottings
Functions: echo read
2
Up
Down
read a file line by line and perform some operation on each line

see sample output

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
set -o vi
2009-02-19 18:40:44
User: nottings
Functions: set
5
Up
Down
use vi key bindings at the command line
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
egrep '^[^#]' some_file
2009-02-19 17:35:52
User: nottings
Functions: egrep
4
Up
Down
display contents of a file w/o any comments or blank lines
Comments (9) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
for i in $(cat listofservers.txt); do konsole --new-tab -e ssh $i; done
2009-02-19 16:32:36
User: nottings
Functions: cat ssh
4
Up
Down
open a seperate konsole tab and ssh to each of N servers (konsole 4.2+)

creates a new tab for each of N servers in listofservers.txt and ssh's to said servers

then, try the "send to all sessions" feature of konsole to do the same work on all servers at the same time. BIG time saver, but be careful!

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ex some_file "+set ff=unix fileencoding=utf-8" "+x"
2009-02-19 16:23:21
User: nottings
Functions: ex
5
Up
Down
Convert file type to unix utf-8

converts encoding of a file to unix utf-8

useful for data files that contain what would be usable ascii text but are encoded as mpeg or some other encoding that prevents you from doing common manipulations like 'sed'

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