Commands using tr sorted by votes

Commands using tr (349)

sorted by

Replaces spaces in filename with _ and converts upper to lower case

All files in the directory will be renamed replacing every space in the filename by "_" (underline) and converting upper case characters to lower case characters. e.g. Foo Bar.txt --> foo_bar.txt
This is sample output - yours may be different.
0

for file in * ; do mv "$file" `echo "$file" | tr ' ' '_' | tr '[A-Z]' '[a-z]'`; done

cengztr · 2012-05-06 17:54:06 3
Change a file to upper case

Translates first set into second set Show Sample Output
This is sample output - yours may be different.
```
100 FINANCE
200 MARKETING
300 PRODUCT DEVELOPMENT
400 SALES
```
0

tr a-z A-Z < file.txt

ankush108 · 2012-06-26 18:52:41 4
Squeeze repeats

Convert long list of ' ' to a single space. Compress space and other characters. Show Sample Output
This is sample output - yours may be different.
```
->xyz           wof
->xyz wof
```
0

tr -s ' '

ankush108 · 2012-06-26 19:34:18 8
Validate openssh key & print checksum
This is sample output - yours may be different.
0

ssh-keygen -l -f [pubkey] | cut -d ' ' -f 2 | tr -ds '\n:' ''

zdouglas · 2012-07-24 15:40:51 3
Remove from PATH paths containing a string

If there are spaces won't work.
This is sample output - yours may be different.
0

export PATH= $(echo $PATH | tr ':' '\n' | awk '!/matching string/' | paste -sd:)

bugmenot · 2012-07-29 00:30:54 3
OS X: clean up Windows and Classic Mac OS newlines from the text in the clipboard

Copying and pasting from Office documents open in Office:mac can dirty your files with Windows CRLF and (inexplicably) Classic Mac OS LF newlines, which can break some tools. This snippet replaces them with good ol' Unix LF newlines.
This is sample output - yours may be different.
0

pbpaste | tr '\r\n' '\n' | tr '\r' '\n' | pbcopy

adambrenecki · 2012-07-31 10:50:14 5

Display IP addresses Pidgin IM Client is connected to

lsof -p `pidof pidgin` | awk '{ print $9 }'|egrep `hostname` | grep -o ">[^:]\+:" | tr -d ":>" | while read line; do host $line; done;

NaN0 · 2012-08-08 14:47:20 3

generate a randome 10 character password
This is sample output - yours may be different.
0

head -c7 /dev/urandom|base64|tr -d '='

Poulpatine · 2012-10-17 14:47:11 3
generate a randome 3 character password
This is sample output - yours may be different.
0

tr -dc '[:graph:]' </dev/urandom | head -c30; echo

tox2ik · 2012-10-22 21:53:07 4
Java app with dynamic classpath

Lauching an app including jars in an adjacent lib folder to its classpath
This is sample output - yours may be different.
0

java -jar app.jar -cp $(echo lib/*.jar | tr ' ' ':')

xymor · 2012-10-29 12:51:46 16
Convert DOS newlines (CR/LF) to Unix format
This is sample output - yours may be different.
0

tr -d '\r' < <input> > <output>

seb1245 · 2012-11-08 23:45:55 4
Convert metasploit cachedump files to Hashcat format for cracking
This is sample output - yours may be different.
0

cd ~/.msf4/loot && cat *mscache* | cut -d '"' -f 2,4 | sed s/\"/\:/g | tr -cd '\11\12\40-\176' | grep -v Username | cut -d : -f 1,2 | awk -F':' '{print $2,$1}' | sed 's/ /:/g' > final.dcc.hash

purehate · 2012-11-26 02:10:08 6
find your public ip address easily
This is sample output - yours may be different.
0

dig @resolver1.opendns.com myip.opendns.com | grep ^myip.opendns.com | tr '\t' : | cut -d: -f5

aliboy · 2012-11-29 19:31:54 5
csv file of ping every minutes

Used in OS X. tr "\n" ";" may be replaced by echo ";" with linux versions of date. I reused ping -q -c 1 www.google.com|tail -1|cut -d/ -f5 Show Sample Output
This is sample output - yours may be different.
```
Mer  6 f?v 2013 22:58:23 CET;37.756
Mer  6 f?v 2013 22:58:24 CET;36.194
Mer  6 f?v 2013 22:58:25 CET;28.422
Mer  6 f?v 2013 22:58:26 CET;38.456
Mer  6 f?v 2013 22:58:27 CET;29.385
Mer  6 f?v 2013 22:58:28 CET;38.182
Mer  6 f?v 2013 22:58:29 CET;27.605
```
0

while true; do (date | tr "\n" ";") && ping -q -c 1 www.google.com|tail -1|cut -d/ -f5 ;sleep 1; done >> uptime.csv

fanchok · 2013-02-06 22:06:09 6
Show alive host on network
This is sample output - yours may be different.
0

nmap -sP 192.168.0.* | grep Host | tr "(" ")" | cut -d\) -f2

szimbaro · 2013-02-27 12:40:45 4
make rsync progress output suitable for shell script reading

This line unbuffers the interactive output of rsync's --progress flag creating a new line for every update. This output can now be used within a script to make actions (or possibly piped into a GUI generator for a progress bar)
This is sample output - yours may be different.
0

rsync --progress user@host:/path/to/source /path/to/target/ | stdbuf -oL tr '\r' '\n' >> rsyncprogress.txt

stew_rt · 2013-03-26 11:06:45 6
Fetches a Reddit user's ($USER) link karma

Replace $USER with the username of the Reddit user in question. To get comment karma instead run... curl -s http://www.reddit.com/user/$USER/about.json | tr "," "\n" | grep "comment_karma" | tr ": " "\n" | grep -E "[0-9]+" | sed s/"^"/"Comment Karma: "/ Show Sample Output
This is sample output - yours may be different.
```
Link Karma: 1337
```
0

curl -s http://www.reddit.com/user/$USER/about.json | tr "," "\n" | grep "link_karma" | tr ": " "\n" | grep -E "[0-9]+" | sed s/"^"/"Link Karma: "/

iiAtlas · 2013-05-13 15:36:59 11
Show counts of messages in exim mail queue, grouped by recipient

Counts of messages by recipient, with frozen messages excluded. Show Sample Output
This is sample output - yours may be different.
```
      1 foo@example.com
      3 bar@example.org
    100 baz@example.net
```
0

sudo /usr/sbin/exim -bp | sed -n '/\*\*\* frozen \*\*\*/,+1!p' | awk '{print $1}' | tr -d [:blank:] | grep @ | sort | uniq -c | sort -n

blueskin · 2013-06-04 10:49:14 8
Generate an XKCD #936 style 4 word password
This is sample output - yours may be different.
0

shuf -n4 /usr/share/dict/words | tr '\n' ' '

nst · 2013-07-28 13:04:06 6
Generate an XKCD #936 style 4 word password

Took one of the samples, added capitalization and removes in between spaces. The final "echo" is just for readability. Cheers Show Sample Output
This is sample output - yours may be different.
```
SolvesCurieGasesFelon
```
0

shuf /usr/share/dict/words |grep "^[^']\{3,6\}$" |head -n4 | sed -e "s/\b$.$/\u\1/g" | tr -d '\n'; echo

chijonutor · 2013-09-06 03:05:31 6
Localize a Public IP on a specific interface

My first command :) I made this command to log public addresses of a virtual interface who connects random VPN servers around the world. Show Sample Output
This is sample output - yours may be different.
```
date/hour/ipaddress/ip location
```
0

(date "+%d-%m-%Y %H:%M:%S";curl -s --interface lo:1 ifconfig.me| xargs -t geoiplookup 2>&1)|sed -e 's/geoiplookup/IP:/g' -e 's/GeoIP Country Edition/Country/g'|tr -s "\n" " "|sed 'a\ '

guerito · 2013-10-07 15:28:55 6
Generate a Random (unicast) MAC address

I did not come up with this one myself, but found this somewhere else several months ago. Show Sample Output
This is sample output - yours may be different.
```
E0:C9:B3:FE:E9:65
```
0

openssl rand -hex 1 | tr '[:lower:]' '[:upper:]' | xargs echo "obase=2;ibase=16;" | bc | cut -c1-6 | sed 's/$/00/' | xargs echo "obase=16;ibase=2;" | bc | sed "s/$/:$(openssl rand -hex 5 | sed 's/$..$/\1:/g; s/.$//' | tr '[:lower:]' '[:upper:]')/"

4fd · 2013-10-22 08:40:46 7
Generate a random password.

Uses urandom and tr to generate a random password. Change the value of head -c## for the lenght of the password. Show Sample Output
This is sample output - yours may be different.
```
dWl2GEd7RE
```
0

echo $(< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c10)

santizo · 2013-11-07 21:51:38 7
Count music files in each directory

This lists the number of ogg/mp3/wav/flac files in each subdirectory of the current directory. The output can be sorted by piping it into "sort -n". Show Sample Output
This is sample output - yours may be different.
```
9955 .
82 ./16 Horsepower
17 ./17 Hippies
11 ./Abney Park
44 ./AC DC
10 ./Accept
1 ./Acceptance
9 ./Adiemus
6 ./Bran? Ketern?
10 ./Budapest Gypsy Symphony Orchestra
20 ./Budapester Klezmer Band
35 ./Buena Vista Social Club
12 ./Burlap To Cashmere
```
0

find . -type d -maxdepth 1 -print0 | xargs -0 -I{} sh -c 'find "{}" -type f | grep "ogg\|mp3\|wav\|flac$" | wc -l | tr -d "\n"; echo " {}"'

dbrgn · 2013-12-22 13:40:29 11
16 Character Random Password

This snippet will produce an alpha-numeric 16 character password Show Sample Output
This is sample output - yours may be different.
```
sll_IBZS8dL4H8bQ
```
0

< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-16};echo;

opexxx · 2014-04-07 10:07:22 7
‹ First < 8 9 10 11 12 > Last ›

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

SHA256 signature sum check of file

get the SHA256 sum signatur for a file

Install pip with Proxy

Installs pip packages defining a proxy

Run the last command as root

Same as `sudo !!`. If you do not have permission to be sudo or sudo does not installed on your system, you can use this.

Alias TAIL for automatic smart output

Run the alias command, then issue $ps aux | tail and resize your terminal window (putty/console/hyperterm/xterm/etc) then issue the same command and you'll understand. $ ${LINES:-`tput lines 2>/dev/null||echo -n 12`} Insructs the shell that if LINES is not set or null to use the output from `tput lines` ( ncurses based terminal access ) to get the number of lines in your terminal. But furthermore, in case that doesn't work either, it will default to using the default of 80. The default for TAIL is to output the last 10 lines, this alias changes the default to output the last x lines instead, where x is the number of lines currently displayed on your terminal - 7. The -7 is there so that the top line displayed is the command you ran that used TAIL, ie the prompt. Depending on whether your PS1 and/or PROMPT_COMMAND output more than 1 line (mine is 3) you will want to increase from -2. So with my prompt being the following, I need -7, or - 5 if I only want to display the commandline at the top. ( http://www.askapache.com/linux/bash-power-prompt.html ) 275MB/748MB [7995:7993 - 0:186] 06:26:49 Thu Apr 08 [askapache@n1-backbone5:/dev/pts/0 +1] ~ $ In most shells the LINES variable is created automatically at login and updated when the terminal is resized (28 linux, 23/20 others for SIGWINCH) to contain the number of vertical lines that can fit in your terminal window. Because the alias doesn't hard-code the current LINES but relys on the $LINES variable, this is a dynamic alias that will always work on a tty device.

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.

Mount important virtual system directories under chroot'ed directory

The command is useful when, e.g., booting an existing system with a rescue or installation CD where you need to chroot into the hard-disk and be able to do stuff which accesses kernel info (e.g. when installing Ubuntu desktop with LVM2 you need to mount and chroot the hard disk from a shell window in order to install packages and run initramfs inside chroot). The command assumes that /mnt/xxx is where the chroot'ed environment's root file system on the hard disk is mounted.

Colored cal output

Make a ready-only filesystem ?writeable? by unionfs

First look into /etc/modules if you have unionfs (or squashfs) support. If not, add the modules. UnionFS combines two filesystems. If there is a need to write a file, /tmp/unioncache will be used to write files (first create that directory). Reads will be done where the file is found first. http://tldp.org/HOWTO/SquashFS-HOWTO/creatingandusing.html

List of directories sorted by number of files they contain.

Install pip with Proxy

Installs pip packages defining a proxy

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)
» commands using tr

Commands using tr (349) the last day the last week the last month all time sorted by date votes

What's this?

Check These Out

Stay in the loop…

Commands using tr (349)

sorted by