Commands using sed

Certain Flash video players (e.g. Youtube) write their video streams to disk in /tmp/ , but the files are unlinked. i.e. the player creates the file and then immediately deletes the filename (unlinking files in this way makes it hard to find them, and/or ensures their cleanup if the browser or plugin should crash etc.) But as long as the flash plugin's process runs, a file descriptor remains in its /proc/ hierarchy, from which we (and the player) still have access to the file. The method above worked nicely for me when I had 50 tabs open with Youtube videos and didn't want to have to re-download them all with some tool.

handels @, ?, whitespaces in names.

replace "?" and "add" by "!" and "rm" for svn mass remove.

---> I m looking for a nicer way to write it, perhaps with something using " perl -ne '`blahblah` if /\?(.*)/' "

This permit to convert an UNIX file to DOS file.

You can use it in a loop to convert multiple files, like :

for i in *.bat; do sed -i 's/$/\r/' $i; done

A "proper" chop (the other chop example only chop's DOS-style newlines).

Applies each file operator using the built-in test.

/home/askapache/.sq

-a True - file exists.

-d True - file is a directory.

-e True - file exists.

-r True - file is readable by you.

-s True - file exists and is not empty.

-w True - the file is writable by you.

-x True - the file is executable by you.

-O True - the file is effectively owned by you.

-G True - the file is effectively owned by your group.

-N True - the file has been modified since it was last read.

Full Function:

testt ()

{

local dp;

until [ -z "${1:-}" ]; do

dp="$1";

[[ ! -a "$1" ]] && dp="$PWD/$dp";

command ls -w $((${COLUMNS:-80}-20)) -lA --color=tty -d "$dp";

[[ -d "$dp" ]] && find "$dp" -mount -depth -wholename "$dp" -printf '%.5m %10M %#15s %#9u %-9g %#5U %-5G %Am/%Ad/%AY %Cm/%Cd/%CY %Tm/%Td/%TY [%Y] %p\n' -a -quit 2> /dev/null;

for f in a b c d e f g h L k p r s S t u w x O G N;

do

test -$f "$dp" && help test | sed "/-$f F/!d" | sed -e 's#^[\t ]*-\([a-zA-Z]\{1\}\) F[A-Z]*[\t ]* True if#-\1 "'$dp'" #g';

done;

shift;

done

}

Here is the full function (got trunctated), which is much better and works for multiple queries.

function cmdfu () {

local t=~/cmdfu;

until [[ -z $1 ]]; do

echo -e "\n# $1 {{{1" >> $t;

curl -s "commandlinefu.com/commands/matching/$1/`echo -n $1|base64`/plaintext" | sed '1,2d;s/^#.*/& {{{2/g' | tee -a $t > $t.c;

sed -i "s/^# $1 {/# $1 - `grep -c '^#' $t.c` {/" $t;

shift;

done;

vim -u /dev/null -c "set ft=sh fdm=marker fdl=1 noswf" -M $t;

rm $t $t.c

}

Searches commandlinefu for single/multiple queries and displays syntax-highlighted, folded, and numbered results in vim.

for music file of mp3.zing.vn

I used this command (in addition to a code formatting tool) to "cleanup" a bunch of PHP files

Delete range of lines. Ex: Line 6 through 66 in .

It remove the square bracket and convert UNIX time to human readable time for all line of a stream (or file).

Use it with cat and '|' for know what is used in a conf file.

For example cat /etc/squid/squid.conf | sed -re '/^#/d ; s/#.*$// ; /^\s$/d' :

Show you what you use in your file conf.

It removes all comments and empty lines.

Empty lines are lines with nothing, a tab, or a space.

Delete a range of line

Delete all comments (#) on text :

It deletes the entire comment line and remove comments form end of others.

as suggest in frans coment :

'/^#[^!].*/d' -> remove if line begin with # except shebang #!/bin/bash

's/\(.*[^!]\)#.*[^}]/\1/' -> remove inline comments except shebang and ${variable#}

deletes first and last line from file either empty or not.

Use the excellent sensiblepasswords.com to a generate random (yet easy-to-remember) password every second, and copy it to the clipboard. Useful for generating a list of passwords and pasting them into a spreadsheet.

This script uses "madebynathan"'s "cb" function (http://madebynathan.com/2011/10/04/a-nicer-way-to-use-xclip/); you could also replace "cb" with

Remove "while true; do" and "; done" to generate and copy only 1 password.

reverse of my previous command 10006

Use sed to remove comments from a file.

In this example the comments begin with #.

The command '/^#/d' remove line starting with #.

The command 's/#.*$//' remove comments at end of lines.

Use sed to remove the last line of a file only if it is empty.

kded --version return this

Qt: 3.3.8b

KDE: 3.5.10

KDE Daemon: $Id: kded.cpp 711061 2007-09-11 09:42:51Z tpatzig $

awk -F: ................. Awk Field separator

NR == 2 ................. Register Number, second line

{print $2} ............... second field

sed 's/\s\+//g' .......... remove one space or more \s\+ changing by nothing