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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!
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awk, bash, curl, find, grep, Linux, sed
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Site originally by David Winterbottom (user root).

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Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

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Commands tagged counter from sorted by
Terminal - Commands tagged counter - 11 results
find /usr/include/ -name '*.[c|h]pp' -o -name '*.[ch]' -print0 | xargs -0 cat | grep -v "^ *$" | grep -v "^ *//" | grep -v "^ */\*.*\*/" | wc -l
2013-06-17 08:37:37
User: unixmonkey44446
Functions: cat find grep wc xargs
Tags: cat find wc source count java code counter C/C++ source code
1
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Counting the source code's line numbers C/C++ Java

Count your source and header file's line numbers. This ignores blank lines, C++ style comments, single line C style comments.

This will not ignore blank lines with tabs or multiline C style comments.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
find /usr/include/ -name '*.[c|h]pp' -o -name '*.[ch]' -print0 | xargs -0 wc -l | tail -1
2011-12-02 07:20:09
User: f4m8
Functions: find tail wc xargs
Tags: tail find xargs wc source count java code counter C/C++ source code
0
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Counting the source code's line numbers C/C++ Java
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find /usr/include/ -name '*.[c|h]pp' -o -name '*.[ch]' -exec cat {} \;|wc -l
2011-12-01 19:58:52
User: kerim
Functions: cat find wc
Tags: cat find wc source count java code counter C/C++ source code
-4
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Counting the source code's line numbers C/C++ Java

Count your source and header file's line numbers

For example for java change the command like this

find . -name '*.java' -exec cat {} \;|wc -l

Show sample output | Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
MIN=10;for ((i=MIN*60;i>=0;i--));do echo -ne "\r$(date -d"0+$i sec" +%H:%M:%S)";sleep 1;done
2011-02-20 11:56:28
User: flatcap
Functions: echo sleep
Tags: date sleep timer for printf counter
11
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Countdown Clock

Countdown clock - Counts down from $MIN minutes to zero.

I let the date command do the maths.

This version doesn't use seq.

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MIN=10 && for i in $(seq $(($MIN*60)) -1 1); do printf "\r%02d:%02d:%02d" $((i/3600)) $(( (i/60)%60)) $((i%60)); sleep 1; done
2011-02-20 10:24:22
User: bugmenot
Functions: printf seq sleep
Tags: timer counter
0
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Countdown Clock
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Check the Description below.
2010-10-07 04:22:32
User: hunterm
Tags: bash Linux wget curl awesome counter epic one liner
-1
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Add together the count of users from the international Linux Counter and the dudalibre.com counter.

The command was too long for the command box, so here it is:

echo $(( `wget -qO - http://i18n.counter.li.org/ | grep 'users registered' | sed 's/.*\<font size=7\>//g' | tr '\>' ' ' | sed 's/<br.*//g' | tr ' ' '\0'` + `curl --silent http://www.dudalibre.com/gnulinuxcounter?lang=en | grep users | head -2 | tail -1 | sed 's/.*<strong>//g' | sed 's/<\/strong>.*//g'` ))

This took me about an hour to do. It uses wget and curl because, dudalibre.com blocks wget, and wget worked nicely for me.

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wget -qO - http://i18n.counter.li.org/ | grep 'users registered' | sed 's/.*\<font size=7\>//g' | tr '\>' ' ' | sed 's/<br.*//g' | tr ' ' '\0'
2010-10-07 03:19:17
User: hunterm
Functions: grep sed tr wget
Tags: Linux sed wget tr counter
-1
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Get the amount of currently registered users from i18n.counter.li.org.
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while [[ COUNTER -le 10 && IFS=':' ]]; do for LINE in $(cat /tmp/list); do some_command(s) $LINE; done; COUNTER=$((COUNTER+1)); done
2010-09-01 15:09:59
User: slashdot
Functions: cat
Tags: while loop count for IFS LINES counter while loop for loop
0
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Iterate through a file where instead of Newline characters, values are separated with a non-white space character.

At times I find that I need to loop through a file where each value that I need to do something with is not on a separate line, but rather separated with a ":" or a ";". In this instance, I create a loop within which I define 'IFS' to be something other than a whitespace character. In this example, I iterate through a file which only has one line, and several fields separated with ":". The counter helps me define how many times I want to repeat the loop.

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function countdown { case "$1" in -s) shift;; *) set $(($1 * 60));; esac; local S=" "; for i in $(seq "$1" -1 1); do echo -ne "$S\r $i\r"; sleep 1; done; echo -e "$S\rBOOM!"; }
2010-06-30 12:20:01
User: kniht
Functions: echo seq set sleep
Tags: timer counter
1
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Countdown Clock

The biggest advantage over atoponce's nifty original is not killing the scrollback. Written assuming bash, but shouldn't be terribly difficult to port to other shells. S should be multiple spaces, but I can't get commandlinefu to save/show them properly, any help?

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MIN=1 && for i in $(seq $(($MIN*60)) -1 1); do echo -n "$i, "; sleep 1; done; echo -e "\n\nBOOOM! Time to start."
2010-06-20 15:19:12
User: atoponce
Functions: echo seq sleep
Tags: timer counter
11
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Countdown Clock

Simple countdown clock that should be quite portable across any Bourne-compatible shell. I used to teach for a living, and I would run this code when it was time for a break. Usually, I would set "MIN" to 15 for a 15-minute break. The computer would be connected to a projector, so this would be projected on screen, front and center, for all to see.

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finit "1 2 3" 3 2 1 | while fnext i ; do echo $i; done;
2010-06-17 10:20:49
User: mechmind
Functions: echo
Tags: echo for counter
2
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Add a progress counter to loop (see sample output)

For this hack you need following function:

finit() { count=$#; current=1; for i in "$@" ; do echo $current $count; echo $i; current=$((current + 1)); done; }

and alias:

alias fnext='read cur total && echo -n "[$cur/$total] " && read'

Inspired by CMake progress counters.

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