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sun solaris 9 complete restart

init states on solaris are numbered init 0 boot with prompt init 5 shutdown init 6 reboot
This is sample output - yours may be different.
-11

init 6

miccaman · 2009-05-29 07:44:05 4
Randomize lines in a file

This appends a random number as a first filed of all lines in SOMEFILE then sorts by the first column and finally cuts of the random numbers.
This is sample output - yours may be different.
4

awk 'BEGIN{srand()}{print rand(),$0}' SOMEFILE | sort -n | cut -d ' ' -f2-

axelabs · 2009-05-29 01:20:50 11
Awk: Perform a rolling average on a column of data

Sometimes jittery data hides trends, performing a rolling average can give a clearer view.
This is sample output - yours may be different.
3

awk 'BEGIN{size=5} {mod=NR%size; if(NR<=size){count++}else{sum-=array[mod]};sum+=$1;array[mod]=$1;print sum/count}' file.dat

mungewell · 2009-05-29 00:07:24 4
'Fix' a typescript file created by the 'script' program to remove control characters

attribution: Thanks to repellent on perlmonks.org source: http://www.perlmonks.org/?node_id=684459
This is sample output - yours may be different.
13

cat typescript | perl -pe 's/\e([^\[\]]|\[.*?[a-zA-Z]|\].*?\a)//g' | col -b > typescript-processed

unixmonkey3987 · 2009-05-28 21:02:17 20
Zip a directory on Mac OS X and ignore .DS_Store (metadata) directory

If you want to generate a cross-platform compatible zip file and ignore the Finder's hidden metadata directory
This is sample output - yours may be different.
4

zip -vr example.zip example/ -x "*.DS_Store"

JadedEvan · 2009-05-28 20:28:12 6
greps the man pages to find utilities
This is sample output - yours may be different.
-4

apropos keyword

tobiasboon · 2009-05-28 18:44:45 6
Filter IPs out of files
This is sample output - yours may be different.
4

egrep -o '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' file.txt

P17 · 2009-05-28 14:46:17 8
List and delete files older than one year
This is sample output - yours may be different.
12

find <directory path> -mtime +365 -and -not -type d -delete

Gomex · 2009-05-28 14:14:49 10
grep across a git repo and open matching files in gedit
This is sample output - yours may be different.
3

git grep -l "your grep string" | xargs gedit

sfusion · 2009-05-28 10:12:19 5
find and replace tabs for spaces within files recursively
This is sample output - yours may be different.
10

find ./ -type f -exec sed -i 's/\t/ /g' {} \;

sfusion · 2009-05-28 10:10:21 7
Replace all tabs with spaces in an application

Note that this assumes the application is an SVN checkout and so we have to throw away all the .svn files before making the substitution.
This is sample output - yours may be different.
3

grep -PL "\t" -r . | grep -v ".svn" | xargs sed -i 's/\t/ /g'

root · 2009-05-28 08:52:14 5
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
List of directories sorted by number of files they contain.
This is sample output - yours may be different.
3

sort -n <( for i in $(find . -maxdepth 1 -mindepth 1 -type d); do echo $(find $i | wc -l) ": $i"; done;)

oremj · 2009-05-28 07:17:09 6

create an emergency swapfile when the existing swap space is getting tight

Create a temporary file that acts as swap space. In this example it's a 1GB file at the root of the file system. This additional capacity is added to the existing swap space. Show Sample Output

sudo dd if=/dev/zero of=/swapfile bs=1024 count=1024000;sudo mkswap /swapfile; sudo swapon /swapfile

dcabanis · 2009-05-27 21:10:50 12

Random numbers with Ruby

There's been a few times I've needed to create random numbers. Although I've done so in PERL, I've found Ruby is actually faster. This script generates 20 random "10" digit number NOT A RANDOM NUMBER. Replace 20 (1..20) with the amount of random numbers you need generated Show Sample Output
This is sample output - yours may be different.
```
-bash2-2.05b$ uname -sr
FreeBSD 5.4-RELEASE-p14
-bash2-2.05b$ ruby -e "puts (1..20).map {rand(10 ** 10).to_s.rjust(10,'0')}"
6366075576
2917975774
7329745840
8691581041
5890408189
1638634981
0295194105
6344513644
4301587535
4936779610
1481540380
5683771498
6753375812
4915063505
1500897963
8012594603
1481070124
3665078190
0436854511
6307883169
```
3

ruby -e "puts (1..20).map {rand(10 ** 10).to_s.rjust(10,'0')}"

sil · 2009-05-27 19:52:53 7
change ownership en masse of files owned by a specific user, including files and directories with spaces

In the example, uid 0 is root. foo:foo are the user:group you want to make owner and group. '.' is the "current directory and below." -print0 and -0 indicate that filenames and directories "are terminated by a null character instead of by whitespace."
This is sample output - yours may be different.
1

find . -uid 0 -print0 | xargs -0 chown foo:foo

abcde · 2009-05-27 19:52:13 6
Compress archive(s) or directory(ies) and split the output file

a - archive m5 - compression level, 0= lowest compression...1...2...3...4...5= max compression -v5M split the output file in 5 megabytes archives, change to 700 for a CD, or 4200 for a DVD R recursive for directories, do not use it for files It's better to have the output of a compression already split than use the 'split' command after compression, would consume the double amount of disk space. Found at http://www.ubuntu-unleashed.com/2008/05/howto-create-split-rar-files-in-ubuntu.html
This is sample output - yours may be different.
0

rar a -m5 -v5M -R myarchive.rar /home/

piovisqui · 2009-05-27 15:53:18 9
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
ramdomize echo 'hello world!'

ramdomize the execution of the command echo 'hello world!'
This is sample output - yours may be different.
-8

(($RANDOM%6)) || echo 'hello world!'

luishka · 2009-05-27 08:11:08 12
show mysql process ids

Show Sample Output
This is sample output - yours may be different.
```
2
3131
3210
5633
6032
6061
6375
6588
6772
7092
7499
7663
```
0

mysql -s -e "show processlist" |awk '{print $1}'

aravind040 · 2009-05-27 07:22:05 5
Organize a TV-Series season

It happened to me that I got a season of a tv-show which had all files under the same folder like /home/blah/tv_show/season1/file{1,2,3,4,5,...}.avi But I like to have them like this: /home/blah/tv_show/season1/e{1,2,3,4,5,...}/file{1,2,3,4,5,...}.avi So I can have both the srt and the avi on one folder without cluttering much. This command organizes everything assuming that the filename contains Exx where xx is the number of the episode. You may need to set: IFS=$'\n' if your filenames have spaces.
This is sample output - yours may be different.
-1

season=1; for file in $(ls) ; do dir=$(echo $file | sed 's/.*S0$season$E[0-9]\{2\}$.*/\1/'); mkdir $dir ; mv $file $dir; done

lonecat · 2009-05-27 03:30:58 4
Find if the command has an alias

Show Sample Output
This is sample output - yours may be different.
```
dusn is aliased to `du -ksc * .[A-Za-z]* | sort -n'
```
16

type -all command

marssi · 2009-05-27 02:57:32 10
fetch all revisions of a specific file in an SVN repository

exported files will get a .r23 extension (where 23 is the revision number)
This is sample output - yours may be different.
2

svn log fileName|cut -d" " -f 1|grep -e "^r[0-9]\{1,\}$"|awk {'sub(/^r/,"",$1);print "svn cat fileName@"$1" > /tmp/fileName.r"$1'}|sh

fizz · 2009-05-27 02:11:58 8

Show the last 20 sessions logged on the machine

change 20 by the number of sessions you want to know (20 it's fair enough) Show Sample Output

last -n 20

jipipayo · 2009-05-26 22:09:09 5

‹ First < 489 490 491 492 493 > Last ›

What's this?

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Make vim open in tabs by default (save to .profile)

I always add this to my .profile rc so I can do things like: "vim *.c" and the files are opened in tabs.

Get AWS temporary credentials ready to export based on a MFA virtual appliance

You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

rsync with progress bar.

transfer files from localhost to a remotehost.

Retrieve "last modified" timestamp of web resource in UTC seconds

This command line assumes that "${url}" is the URL of the web resource. It can be useful to check the "freshness" of a download URL before a GET request.

Ultimate current directory usage command

Based on the MrMerry one, just add some visuals and sort directory and files

Put the machine to sleep after the download(wget) is done

[Note: This command needs to be run as root]. If you are downloading something large at night, you can start wget as a normal user and issue the above command as root. When the download is done, the computer will automatically go to sleep. If at any time you feel the computer should not go to sleep automatically(like if you find the download still continuing in the morning), just create an empty file called nosleep in /tmp directory.

Count all the files in the directory and child directories

Install pip with Proxy

Installs pip packages defining a proxy

Printable random characters

Reads psuedorandom bytes from /dev/urandom, filtering out non-printable ones. Other character classes can be used, such as [:alpha:], [:digit:] and [:alnum:]. To get a string of 10 lowercase letters: $ tr -dc '[:lower:]' < /dev/urandom | head -c 10

Encrypted archive with openssl and tar

The lifehacker way: http://lifehacker.com/software/top/geek-to-live--encrypt-your-data-178005.php#Alternate%20Method:%20OpenSSL "That command will encrypt the unencrypted-data.tar file with the password you choose and output the result to encrypted-data.tar.des3. To unlock the encrypted file, use the following command:" $ openssl des3 -d -salt -in encrypted-data.tar.des3 -out unencrypted-data.tar

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