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format txt as table not joining empty columns adding header with column numbers

This version now adds a header with consecutive numbering. Show Sample Output
This is sample output - yours may be different.
```
cat file.csv
column_a;column_b;column_c
a;b;c
;b;c
a;b;

cat file.csv | perl -pe 'if($. == 1) {@h = split(/;/); $i = 1 ; map { $_ = $i; $i++ } @h; print join(" ;", @h) , "\n"} ; s/(^|;);/$1 ;/g' | column -ts\;
1         2         3
column_a  column_b  column_c
a         b         c
          b         c
a         b
```
0

cat file.csv | perl -pe 'if($. == 1) {@h = split(/;/); $i = 1 ; map { $_ = $i; $i++ } @h; print join(" ;", @h) , "\n"} ; s/(^|;);/$1 ;/g' | column -ts\; | less -S

bashrc · 2011-08-31 12:52:02 4
Show external IP; Short and sweet.

lynx -dump ip.nu Your IP address is 0.0.0.0
This is sample output - yours may be different.
0

lynx -dump ip.nu

ariver · 2012-05-02 14:54:12 3
change default Web browser

also use: update-alternatives --config gnome-www-browser
This is sample output - yours may be different.
0

update-alternatives --config x-www-browser

gwd · 2012-07-08 20:27:42 4
Preview All Files in Directory
This is sample output - yours may be different.
0

find . -type f | xargs -I% bash -c 'echo -e "\033[31m%\033[0m" && [[ ! `file %` =~ .*binary.* ]] && head "%"'

mx4492 · 2012-08-28 12:52:38 9
Total size in RPM packages

It is not the installed size in files, but the size of RPM packages. Show Sample Output
This is sample output - yours may be different.
```
Total size in packages = 14.5 GB
```
0

rpm -qa --queryformat '%{SIZE}\n' | awk '{sum += $1} END {printf("Total size in packages = %4.1f GB\n", sum/1024**3)}'

skytux · 2013-12-14 20:22:41 10
List EC2 servers by tag name and instanceId

Uses the python-based AWS CLI (https://aws.amazon.com/cli/) and the JSON query tool, JQ (https://stedolan.github.io/jq/)
This is sample output - yours may be different.
0

aws ec2 describe-instances --query "Reservations[*].Instances[*]" | jq '.[]|.[]|(if .Tags then (.Tags[]|select(.Key == "Name").Value) else empty end)+", " +.InstanceId'

thatinstant · 2014-06-26 20:01:12 7
easiest way to get kernel version without uname

The dmesg will show the kernel it is booting. No more dependency on files Show Sample Output
This is sample output - yours may be different.
```
# dmesg                                  
Booting Linux on physical CPU 0
Initializing cgroup subsys cpu
Linux version 3.4.67-01422-gd3ffcc7-dirty (digit@tyrion.par.corp.google.com) (gcc version 4.8 (GCC) ) #1 PREEMPT Tue Sep 16 19:34:06 CEST 2014
```
0

dmesg

sagarsakre · 2014-10-22 10:03:56 8
What's the weather like?

Just 253 chars of pure UNIX magic, with curl. I created this contrived bash one-liner while building a command-line bash game : www.rubegoldbash.com. Show Sample Output
This is sample output - yours may be different.
```
   Endeavour Inlet

   title
   19.128?
   Clouds: 88%
   Humidity: 98%
   Wind: 13.12 m/s
   Pressure: 1013.76hpa
```
0

curl -s ip.appspot.com | xargs -n 1 curl -s "freegeoip.net/csv/$1" | cut -d ',' -f '9 10' | sed 's/,/\&lon=/g' | xargs -n 1 echo "http://api.openweathermap.org/data/2.5/weather?mode=html&lat=$1" | sed 's/ //g' | xargs -n 1 curl -s $1 | lynx -stdin -dump

supermoustachu · 2015-02-04 00:47:06 14
Convert video file to animated gif (high quality)

Requires ffmpeg with image2pipe filter and imagemagick Show Sample Output
This is sample output - yours may be different.
```
<gif output>
```
0

ffmpeg -i input.mp4 -vf scale=w=320:h=-1 -r 10 -f image2pipe -vcodec ppm - | convert -delay 5 -loop 0 - output.gif

TheMadScientist · 2016-01-08 17:21:37 11
To help sort through differences in .txt files
This is sample output - yours may be different.
0

diff *txt -u | less

creepyjones · 2016-07-20 17:53:04 12
Salvage a borked terminal
This is sample output - yours may be different.
0

tput rmso

hansgruber · 2017-07-13 20:01:42 17
XZIP many catalogs

Find (by regular expression) and compress (xzip) catalogs then remove source catalogs
This is sample output - yours may be different.
0

find . -type d |awk '$1 ~ /[0-9]/ {print $0}' |xargs -P 4 -I NAME tar --remove-files -vcJf NAME.tar.xz NAME

Glafir · 2017-08-28 08:05:29 19
package most recent files in project

create tar.bz2 package from files "-type f" modificated today "-mtime -1" in ~/project
This is sample output - yours may be different.
0

find ~/project -mtime -1 -type f -print | tar jcvf myfiles.tar.bz2 -T -

voyeg3r · 2009-03-13 13:03:11 4
Disable graphical login on OpenSolaris

On Solaris 10 you used dtconfig -d to achieve this. The command will disable X and your system will now boot to a text console.
This is sample output - yours may be different.
0

svcadm disable gdm

thesuperjason · 2009-07-25 02:32:46 3
Convert a .wav file to .sln file
This is sample output - yours may be different.
0

sox is_that_correct.wav -t raw -r 8000 -s -w -c 1 is_that_correct.sln

tkembo · 2011-08-31 13:03:30 4
Colored word-by-word diff of two files

Requires wdiff. Prints the word-by-word diff with the old version highlighted in red, and the new in green. Change the colors by altering 41m and 42m. 45m is more of a magenta and may be easier to read.
This is sample output - yours may be different.
0

wdiff -n -w $'\033[30;41m' -x $'\033[0m' -y $'\033[30;42m' -z $'\033[0m' oldversion.txt newversion.txt

abracadabra · 2011-11-10 18:35:41 3
Symlink most recent file to 'latest' using full paths.
This is sample output - yours may be different.
0

ln -s "`find /path -type f -iname $(ls -t /path | head -1 )`" /path/latest

logikal · 2011-12-21 07:20:17 3
Print trending topics on Twitter

Prints top 5 twitter topics. Not very well written at all but none of the others worked.
This is sample output - yours may be different.
0

curl -s mobile.twitter.com/search | sed -n '/trend_footer_list/,/\ul>/p' | awk -F\> '{print $3}' | awk -F\< '{print $1}' | sed '/^$/d'

articmonkey · 2012-03-15 17:17:06 3
Geographic location and more for current external IP address.
This is sample output - yours may be different.
0

lynx -dump http://www.ip2location.com/ | sed -n '/^ *Field Name *Value *$/,/^ *\[_\] *Mobile .*Carrier.*name/p'

ariver · 2012-05-02 15:46:59 5
find css or js files, minifiy with in-path-yuicompressor, gzip output, and save into <static-file>.gz
This is sample output - yours may be different.
0

find -regextype posix-egrep -regex '.*\.(css|js)$' | xargs -I{} sh -c "echo '{}' && yuicompressor '{}' | gzip -c > '{}.gz'"

frankowp · 2013-12-14 20:27:47 8
Search recursively to find a word or phrase in certain file types, such as C code

Warnings and errors will be suppressed Show Sample Output
This is sample output - yours may be different.
```
./web/blah.html:33:		<div>some string and some such</div>
```
0

grep --include=\*.html -R "some string" . 2>/dev/null

sjmixon · 2015-02-04 17:59:41 8
grant me all the groups

NSFW - use this on personal laptops where you want your personal user to have all the groups Show Sample Output
This is sample output - yours may be different.
```
Adding user user1 to group lpadmin
.....all the groups
```
0

cut -f1 -d: /etc/group|xargs -n1 -I{} gpasswd -a $USERNAME {}

thoth · 2016-01-08 18:03:36 12
debian keyboard layout reconfigure

select generic 105 intl. pc > german (turkisch)
This is sample output - yours may be different.
0

dpkg-reconfigure keyboard-configuration

aysadk · 2017-07-14 15:04:02 100
rsnapshot vim edit replaying space tabs
This is sample output - yours may be different.
0

sed 's/ \+ /\t/g' /usr/local/etc/rsnapshot.conf >/tmp/snap.conf

aysadk · 2017-08-28 13:18:12 18
Disable all iptables rules without disconnecting yourself

This turns your iptables packet filter to a "Allow any from any to any" filter, so you can rule out any filtering issues when you have a problem to enable a connection from or to your host. To re-enable it, run /etc/init.d/iptables restart
This is sample output - yours may be different.
0

iptables -F && iptables -X && iptables -P INPUT ACCEPT && iptables -OUTPUT ACCEPT

lme · 2009-03-27 15:03:54 5
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Create a PNG screenshot of Rigol Ultravision scopes attached per LAN

Scope should have the Rigol Ultravision Technology otherwise it won't accept the command. ImageMagic is required. Scope sends a 1.1M BMP file and converted to PNG it's only 18-20K

Day of the week of your birthday over the years.

Do you ever want to know which day of week was your birhday! Now you can check that with this command, just set your birh date at the beginning (My bday in the example) and the dates will be revealed. ;)

List files opened by a PID

Lis all files opened by a particular process id. "PID"

Split lossless audio (ape, flac, wav, wv) by cue file

Do you have an entire album in a unique file and want to split it in individual tracks? If you also have the cue file you can do it! Packages for Debian-based systems users: * cuetools shntool * FLAC (.flac): flac * WavPack (.wv): wavpack * Monkey's Audio (.ape): libmac2 monkeys-audio (deb http://www.debian-multimedia.org sid main) NOTE: "sid" packages are unstable, but I didn't have problems with them. If you prefer, use the "stable" version repository. To transfer the tags, you can use this (works with .flac, .ogg and .mp3): $ cuetag sample.cue split-track*.flac

Rotate a single page PDF by 180 degrees

More pdftk examples: http://www.pdflabs.com/docs/pdftk-cli-examples/

Install pip with Proxy

Installs pip packages defining a proxy

Poor's man Matrix script

This creates a matrix of letters that run forever until you hit Ctrl-C simulating "The Matrix" effect... just for fun :) You may want to try the -n and -y switch to change the "FX" LOL! e.g.: pwgen -ny 3

Set name of windows in tmux/byobu to hostnames of servers you're connected to

*I run this with byobu as as a custom status bar entry that runs every 10 seconds by putting it in a script here: $ .byobu/bin/10_update_windows There's no output to stdout, so nothing is displayed on the status bar. *Presumes that #{pane_title} is set to the hostname or prompt containing the host name. In my case, it's in this format: $ $USER@$HOSTNAME:$PWD The sed commands may need to be modified if your pane_title is different. *If you want to strip out a common part of a hostname, add the following before '| uniq' $ -e 's/[COMMON PART]//' I use that to strip out the domain of the servers I connect to, leaving the subdomain.

ls only directories

Like normal ls, but only lists directories. Can be used with -l to get more details (ls -lad */)

backup local MySQL database into a folder and removes older then 5 days backups

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