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Commands using tr from sorted by
Terminal - Commands using tr - 282 results
printf "%`tput cols`s"|tr ' ' '#'
function wherepath () { for DIR in `echo $PATH | tr ":" "\n" | awk '!x[$0]++ {print $0}'`; do ls ${DIR}/$1 2>/dev/null; done }
2010-04-02 20:32:36
User: mscar
Functions: awk ls tr
Tags: find locate PATH
0

The wherepath function will search all the directories in your PATH and print a unique list of locations in the order they are first found in the PATH. (PATH often has redundant entries.) It will automatically use your 'ls' alias if you have one or you can hardcode your favorite 'ls' options in the function to get a long listing or color output for example.

Alternatives:

'whereis' only searches certain fixed locations.

'which -a' searches all the directories in your path but prints duplicates.

'locate' is great but isn't installed everywhere (and it's often too verbose).

seq -s'#' 0 $(tput cols) | tr -d '[:digit:]'
2010-04-01 09:06:44
User: jgc
Functions: seq tput tr
Tags: seq tr tput
6

Print a row of characters across the terminal. Uses tput to establish the current terminal width, and generates a line of characters just long enough to cross it. In the example '#' is used.

It's possible to use a repeating sequence by dividing the columns by the number of characters in the sequence like this:

seq -s'~-' 0 $(( $(tput cols) /2 )) | tr -d '[:digit:]'

or

seq -s'-~?' 0 $(( $(tput cols) /3 )) | tr -d '[:digit:]'

You will lose chararacters at the end if the length isn't cleanly divisible.

printf "%.50d" 0 | tr 0 -
seq -s" " -50 -1 | tr -dc -
2010-03-25 06:00:24
Functions: seq tr
5

Get there by going backwards and forgetting the numbers.

tr '\n' '\t' < inputfile
tr '\t' '\n' < inputfile
grep current_state= /var/log/nagios/status.dat|sort|uniq -c|sed -e "s/[\t ]*\([0-9]*\).*current_state=\([0-9]*\)/\2:\1/"|tr "\n" " "
cat /proc/$(lsof -ti:8888)/cmdline | tr "\0" " "
cat authorized_keys_with_broken_lines | sed 's,^ssh,%ssh,' | tr '\n' '\0' | tr '%' '\n' | sed '1d' | sed "/^$/d" > authorized_keys
2010-02-19 08:32:35
User: pepin
Functions: cat sed tr
0

when someone mail you his ssh public key, and the lines are broken with '\n', you can reconstruct a new file with one key by line with this command.

curl -s -u $username:$password http://192.168.1.1/DHCPTable.htm | grep '<td>.* </td>' | sed 's|\t<td>\(.*\) </td>\r|\1|' | tr '\n' ';' | sed 's/\([^;]*\);\([^;]*\);/\2\t\1\n/g'
2010-02-16 02:27:11
User: matthewbauer
Functions: grep sed tr
0

Will create a sample etc host file based on your router's dhcp list.

Now I know this won't work on most routers, so please don't downvote it just because it doesn't work for you.

username=matthewbauer; curl -s http://www.commandlinefu.com/commands/by/$username/json | tr '{' '\n' | grep -Eo ',"votes":"[0-9\-]+","' | grep -Eo '[0-9\-]+' | tr '\n' '+' | sed 's/+$/\n/' | bc
2010-02-14 04:32:36
User: matthewbauer
Functions: grep sed tr
8

This will calculate the your commandlinefu votes (upvotes - downvotes).

Hopefully this will boost my commandlinefu points.

cat file | tr '\n' ''
curl -s -H "Authorization: GoogleLogin auth=$auth" "http://www.google.com/reader/api/0/unread-count?output=json" | tr '{' '\n' | sed 's/.*"count":\([0-9]*\),".*/\1/' | grep -E ^[0-9]+$ | tr '\n' '+' | sed 's/\(.*\)+/\1\n/' | bc
2010-02-11 00:42:57
User: matthewbauer
Functions: grep sed tr
-1

Get Google Reader unread count from the command line.

You'll have to define your auth token with $auth

Or use:

curl -s -H "Authorization: GoogleLogin auth=$(curl -sd "Email=$email&Passwd=$password&service=reader" https://www.google.com/accounts/ClientLogin | grep Auth | sed 's/Auth=\(.*\)/\1/')" "http://www.google.com/reader/api/0/unread-count?output=json" | tr '{' '\n' | sed 's/.*"count":\([0-9]*\),".*/\1/' | grep -E ^[0-9]+$ | tr '\n' '+' | sed 's/\(.*\)+/\1\n/' | bc
wget -q -U busybox -O- "http://www.google.com/search?ie=UTF8&q=define%3A$1" | tr '<' '\n' | sed -n 's/^li>\(.*\)/\1\n/p'
2010-02-01 13:01:47
User: hackerb9
Functions: sed tr wget
0

This is a minimalistic version of the ubiquitious Google definition screen scraper. This version was designed not only to run fast, but to work using BusyBox. BusyBox is a collection of basic Unix tools that have been compiled into a single binary to save space on tiny installations of Unix. For example, although my phone doesn't have perl or the GNU utilities, it does have BusyBox's stripped down versions of wget, tr, and sed. It turns out that those tools suffice for many tasks.

Known Bugs: This script does not handle HTML entities at all. I don't think there's an easy way to do that within BusyBox, but I'd love to see it if someone could do it. Also, this script can only define a single word, not phrases. (Well, you could if you typed in %20, but that'd be gross.) Lastly, this script does not show the URL where definitions were found. Given the randomness of the Net, that last bit of information is often key.

mailq | grep MAILER-DAEMON | awk ?{print $1}? | tr -d ?*? | postsuper -d -
echo $(( $( cat count.txt | tr "\n" "+" | xargs -I{} echo {} 0 ) ))
2010-01-27 10:02:30
User: glaudiston
Functions: cat echo tr xargs
0

if you, like me, do not have the numsum, this way can do the same.

paste -d "." <(curl http://.../dist.female.first http://.../dist.male.first | cut -d " " -f 1 | sort -uR) <(curl http://..../dist.all.last | cut -d " " -f 1 | sort -R | head -5163) | tr "[:upper:]" "[:lower:]" | sed 's/$/@test.domain/g'
2010-01-21 19:52:28
User: connorsy
Functions: cut head paste sed sort tr
0

** Replace the ... in URLS with:

www.census.gov/genealogy/www/data/1990surnames

Couldn't fit in 256

Created on Ubuntu 9.10 but nothing out of the ordinary, should work anywhere with a little tweaking. 5163 is the number of unique first names you get when combine the male and female first name files from. http://www.census.gov/genealogy/www/data/1990surnames/names_files.html

port=8888;pid=$(lsof -Pan -i tcp -i udp | grep ":$port"|tr -s " " | cut -d" " -f2); ps -Afe|grep "$pid"|grep --invert-match grep | sed "s/^\([^ ]*[ ]*\)\{7\}\(.*\)$/\2/g"
2010-01-11 17:49:22
User: glaudiston
Functions: cut grep ps sed tr
0

A way not so simple but functional for print the command for the process that's listening a specific port.

I got the pid from lsof because I think it's more portable but can be used netstat

netstat -tlnp
printf "%50s\n"|tr ' ' -
2010-01-07 08:49:46
User: rodolfoap
Functions: printf tr
-2

Better -and faster- using bash printf.

openssl rand -base64 1000 | tr "[:upper:]" "[:lower:]" | tr -cd "[:alnum:]" | tr -d "lo" | cut -c 1-8 | pbcopy
2009-12-29 17:18:25
User: _eirik
Functions: cut tr
-3

eliminates "l" and "o" characters change length by changing 'x' here: cut -c 1-x

echo -ne "\e[32m" ; while true ; do echo -ne "\e[$(($RANDOM % 2 + 1))m" ; tr -c "[:print:]" " " < /dev/urandom | dd count=1 bs=50 2> /dev/null ; done
2009-12-19 19:05:04
User: psykotron
Functions: dd echo tr true
Tags: color
4

A bit different from some of the other submissions. Has bold and uses all c printable characters. Change the bs=value to speed up and increase the sizes of the bold and non-bold strings.

find . -iname "*.jpg" -print0 | tr '[A-Z]' '[a-z]' | xargs -0 cp --backup=numbered -dp -u --target-directory {location} &
2009-12-10 08:47:04
User: oracular
Functions: cp find tr xargs
4

Use if you have pictures all over the place and you want to copy them to a central location

Synopsis:

Find jpg files

translate all file names to lowercase

backup existing, don't overwrite, preserve mode ownership and timestamps

copy to a central location

tr '\000' '\377' < /dev/zero | dd of=allones bs=1024 count=2k
2009-12-08 16:05:28
User: azeey
Functions: dd tr
Tags: dd tr
4

This is similar to how you would generate a file with all zeros

dd if=/dev/zero of=allzeros bs=1024 count=2k
tr -dc 'a-zA-Z0-9' < /dev/urandom | head -c10
2009-12-01 14:22:20
User: Phil
Functions: head tr
-1

A slightly shorter version. Also doesn't put a return character at the end of the password