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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
combine `mkdir foo && cd foo` into a single function `mcd foo`

I find that I create a directory and then cd into that directory quite often. I found this little function on the internets somewhere and thought I'd share it. Just copy-paste it into you ~/.bash_profile and then `source ~/.bash_profile`. Show Sample Output
This is sample output - yours may be different.
```
user@home:~$ mcd newdirectory
user@home:newdirectory $
```
4

function mcd() { [ -n "$1" ] && mkdir -p "$@" && cd "$1"; }

thebillywayne · 2009-05-20 16:41:48 8
get the list of temps for your hard-drives

get a list of temps of your hard-drives. Show Sample Output
This is sample output - yours may be different.
```
31 31 31 29
```
0

hddtemp /dev/sda /dev/sdb /dev/hda /dev/hdb | gawk '{print $NF}' | perl -n -e '$_ =~ s/(\d+)/print "$1 "/eg }{ print "\n"'

microft · 2009-05-20 16:01:58 4
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
disable history for current shell session

this will cause any commands that you have executed in the current shell session to not be written in your bash_history file upon logout
This is sample output - yours may be different.
18

unset HISTFILE

grokskookum · 2009-05-20 14:46:18 20
Shows the torrent file name along with the trackers url

Replace * with any filename matching glob or an individual filename
This is sample output - yours may be different.
2

grep -ao -HP "http://[^/]*/" *

binarycodes · 2009-05-20 14:45:34 35
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
Go (cd) directly into a new temp folder

This command create a new temp directory using mktemp (to avoid collisions) and change the current working directory to the created directory. Show Sample Output
This is sample output - yours may be different.
```
/tmp$ cd "$(mktemp -d)"
/tmp/tmp.gZIwreyWQp$
```
8

cd "$(mktemp -d)"

Weboide · 2009-05-20 11:48:12 11
List files recursively sorted by modified time
This is sample output - yours may be different.
0

find /home/fizz -type f -printf '%TY-%Tm-%Td %TT %p\n' | sort

fizz · 2009-05-20 10:45:39 6
user 'tr' to convert mixed case in a file to lower case

convert mixed case in a file to lower case
This is sample output - yours may be different.
2

tr "[:upper:]" "[:lower:]" < file

gordonrgw · 2009-05-20 09:21:02 6
Break lines after, for example 78 characters, but don't break within a word/string

Per default, linux/unix shells are configured with a width of 80 characters. If you like to edit a phrase or string on a line with more than 80 characters it might take long to go there (for example a line with 1000 characters and you like to edit the 98th word which is character 598-603). Maybe you might wish to use 78 characters, because if you forward the text via mail and the text will be quoted (2 extra characters at the beginning to the line "> "), you use 80 characters, otherwise 82, which are lame.
This is sample output - yours may be different.
3

fold -w 78 -s file-to-wrap

GeckoDH · 2009-05-19 19:33:10 5
Extract an audio track from a multilingual video file, for a specific language.
This is sample output - yours may be different.
0

mencoder -aid 2 -oac copy file.avi -o english.mp3

prayer · 2009-05-19 19:24:43 7
Notify me when users log in

Notifyme is a program that listen in background for users login, and report on login and logout. Users can be specified from a list or in a ~/notify.rc file. -C options force to display messages on the center of the screen.See man notifyme for more details. Part of notifyme package, tested on Debian. Show Sample Output
This is sample output - yours may be different.
```
root from :0.0 arrived!
```
4

notifyme -C `cat /etc/passwd | cut -d: -f1`

servermanaged · 2009-05-19 19:17:05 10
Share a 'screen'-session

Ater person A starts his screen-session with `screen`, person B can attach to the srceen of person A with `screen -x`. Good to know, if you need or give support from/to others.
This is sample output - yours may be different.
13

screen -x

GeckoDH · 2009-05-19 19:10:52 8
Unix security checker

From man tiger : Tiger is a package consisting of Bourne Shell scripts, C code and data files which is used for checking for security problems on a UNIX system. It scans system configuration files, file systems, and user configuration files for possible security problems and reports them. Show Sample Output
This is sample output - yours may be different.
```
Tiger security scripts *** 3.2.2, 2007.08.28.00.00 ***
20:57> Beginning security report for hob.juniper.
20:57> Starting file systems scans in background...
20:57> Checking password files...
20:57> Checking group files...
20:57> Checking user accounts...
20:58> Checking .rhosts files...
20:58> Checking .netrc files...
20:58> Checking ttytab, securetty, 
.....
```
-3

tiger

servermanaged · 2009-05-19 19:07:11 16
Top like mysql monitor

mytop is a top like monitor for displaying Mysql server statistic and performance. Part of mytop package ,tested on Debian.
This is sample output - yours may be different.
0

mytop --prompt

servermanaged · 2009-05-19 19:04:57 5
Simplification of "sed 'your sed stuff here' file > file2 && mv file2 file"
This is sample output - yours may be different.
5

sed -i 'your sed stuff here' file

Keruspe · 2009-05-19 15:35:42 5
Function that counts recursively number of lines of all files in specified folders
This is sample output - yours may be different.
4

count() { find $@ -type f -exec cat {} + | wc -l; }

Keruspe · 2009-05-19 15:02:51 9
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
Backup your OpenWRT config (only the config, not the whole system)

You only have to fill in your administrative account and password, and the router FQDN! I recommand to execute this command not over the internet, because there is no encryption (the username and password will be transmitted in plaintext!)
This is sample output - yours may be different.
3

curl -d 'username=root&password=your-good-password' "http://router/cgi-bin/luci/admin/system/backup?backup=kthxbye" > `date +%Y%d%m`_config_backup.tgz

GeckoDH · 2009-05-19 11:32:30 7
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Add temporary <1m entries to old cron

Old cron doesn't allow periods

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

ls -hog --> a more compact ls -l

I often deal with long file names and the 'ls -l' command leaves very little room for file names. An alternative is to use the -h -o and -g flags (or together, -hog). * The -h flag produces human-readable file size (e.g. 91K instead of 92728) * The -o suppresses the owner column * The -g suppresses the group column Since I use to alias ll='ls -l', I now do alias ll='ls -hog'

Find dead symbolic links

Simulate typing but with mistakes

The output will show jerk, then wonderful person since echo parses the \b character.

Make a directory named with the current date

Create a directory named with the current date in ISO 8601 format (yyyy-mm-dd). Useful for storing backups by date. The --iso switch may only work with GNU date, can use format string argument for other date versions.

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"

Deal with dot files safely

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"

grep -v with multiple patterns.

If you wanted to do all in one command, you could go w/ sed instead

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