Commands by sharfah

Commands by sharfah (46)

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Show current working directory of a process
This is sample output - yours may be different.
20

pwdx pid

sharfah · 2009-08-13 08:49:11 12
Pick a random line from a file

prints a random line
This is sample output - yours may be different.
-4

head -$(($RANDOM % $(wc -l < file.txt) +1 )) file.txt | tail -1

sharfah · 2009-07-23 12:00:49 3
find all non-html files
This is sample output - yours may be different.
4

find . -type f ! -name "*html"

sharfah · 2009-07-14 07:56:38 3
Convert string to uppercase
This is sample output - yours may be different.
2

echo string | tr '[:lower:]' '[:upper:]'

sharfah · 2009-05-28 08:15:58 7
Clear history
This is sample output - yours may be different.
1

history -c

sharfah · 2009-05-27 14:35:49 4
Change timestamp on a file

-a for access time, -m for modification time, -c do not create any files, -t timestamp
This is sample output - yours may be different.
1

touch -amct [[CC]YY]MMDDhhmm[.ss] FILE

sharfah · 2009-05-27 14:33:22 5
Run Remote GUI Programs Using SSH Forwarding

Run GUI apps on another machine remotely through SSH. -C is for data compression and -X enables X11 forwarding.
This is sample output - yours may be different.
-2

ssh -C -X user@remotehost gui_command

sharfah · 2009-05-21 17:52:24 7
Get max number of arguments

Get max number of arguments that can be accepted by the exec() system call.
This is sample output - yours may be different.
1

getconf ARG_MAX

sharfah · 2009-05-21 14:27:35 3
Find which jars contain a class
This is sample output - yours may be different.
3

find . -name "*.jar" | while read file; do echo "Processing ${file}"; jar -tvf $file | grep "Foo.class"; done

sharfah · 2009-05-20 17:33:17 4
View SuSE version

Displays SuSE release information Show Sample Output
This is sample output - yours may be different.
```
SUSE LINUX Enterprise Server 9 (x86_64)
VERSION = 9
PATCHLEVEL = 4
```
-3

cat /etc/SuSE-release

sharfah · 2009-05-20 17:28:12 20
Prevent shell autologout

Unset TMOUT or set it to 0 in order to prevent shell autologout. TMOUT is the number of seconds after which the present shell will be killed if it has been idle for that long.
This is sample output - yours may be different.
7

unset TMOUT

sharfah · 2009-05-20 14:57:50 12
Skipping tests in Maven

the maven.test.skip property can be added to other goals too.
This is sample output - yours may be different.
-4

mvn -Dmaven.test.skip=true install

sharfah · 2009-05-20 12:55:10 6
Creating a Maven project

This will create a new directory called MyProject with a pom.xml and the following tree structure: MyProject |-->pom.xml |-->src | |-->main | | |-->java | | | |-->my | | | | |-->work | | | | | |-->App.java | |-->test | | |-->java | | | |-->my | | | | |-->work | | | | | |-->AppTest.java
This is sample output - yours may be different.
-5

mvn archetype:create -DgroupId=my.work -DartifactId=MyProject

sharfah · 2009-05-20 12:53:23 4
Find last reboot time

Displays time of last system boot Show Sample Output
This is sample output - yours may be different.
```
system boot  May 10 03:33
```
16

who -b

sharfah · 2009-05-19 11:52:54 24
View memory utilisation

Report memory and swap space utilization statistics e.g. memory free/used, swap free/used
This is sample output - yours may be different.
-2

sar -r

sharfah · 2009-05-19 11:47:38 10
Check if a process is running

Send signal 0 to the process. The return status ($?) can be used to determine if the process is running. 0 if it is, non-zero otherwise.
This is sample output - yours may be different.
5

kill -0 [pid]

sharfah · 2009-05-19 11:37:20 8
Create a tar.gz in a single command

Where foodir is the directory you want to zip up.
This is sample output - yours may be different.
-7

tar cvf - foodir | gzip > foo.tar.gz

sharfah · 2009-05-19 11:33:51 14
Extract tar.gz in a single command
This is sample output - yours may be different.
-12

gunzip < foo.tar.gz | tar xvf -

sharfah · 2009-05-19 11:33:02 11
Delete Empty Directories

Deletes empty directories and prints an error if directory is not empty. Show Sample Output
This is sample output - yours may be different.
```
rmdir: directory ".": Can't remove current directory or ..
rmdir: directory "./dir2": Directory not empty
```
2

find . -type d -exec rmdir {} \;

sharfah · 2009-05-19 08:59:15 28
Get Tomorrow's Date

Returns tomorrow's date in the format yyyyMMdd
This is sample output - yours may be different.
-2

TOM=`perl -w -e '@tom=localtime(time+86400);printf "%d%.2d%.2d",$tom[5]+1900,$tom[4]+1,$tom[3];'`

sharfah · 2009-05-19 08:54:27 9
Get Yesterday's Date

Returns yesterday's date in the format yyyyMMdd
This is sample output - yours may be different.
-2

YEST=`perl -w -e '@yest=localtime(time-86400);printf "%d%.2d%.2d",$yest[5]+1900,$yest[4]+1,$yest[3];'`

sharfah · 2009-05-19 08:54:06 46
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split source code to page with numbers

Sharing file through http 80 port

From the other machine open a web navigator and go to ip from the machine who launch netcat, http://ip-address/ If you have some web server listening at 80 port then you would need stop them or select another port before launch net cat ;-) * You need netcat tool installed

ShadyURL via CLI

Display GCC Predefined Macros

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Lists all listening ports together with the PID of the associated process

This command is more portable than it's cousin netstat. It works well on all the BSDs, GNU/Linux, AIX and Mac OS X. You won't find lsof by default on Solaris or HPUX by default, but packages exist around the web for installation, if needed, and the command works as shown. This is the most portable command I can find that lists listening ports and their associated pid.

Generate random valid mac addresses

First set the variable $hexchars: $hexchars="0123456789ABCDEF" Change the number in the first for loop if you need less then 1200 mac addresses

Create a mirror of a local folder, on a remote server

Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

Merge AVI-files without recoding

Useful for when you download movies split into < 700mb parts. Credit to rich @ http://superuser.com/questions/318640/merge-avi-files-without-recoding-in-mac-os-x-lion mencoder is generally included with mplayer. MacPorts: $sudo port install mplayer

run complex remote shell cmds over ssh, without escaping quotes

Much simpler method. More portable version: ssh host -l user "`cat cmd.txt`"

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