Commands using file sorted by votes

Commands using file (166)

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Cat files in a directory; for loop command

Original submitted version would break if any filenames had whitespaces in them. The command is a Bad Idea anyhow, because you will end up `cat`ing a binary or something else specacularly bad.
This is sample output - yours may be different.
-2

for file in ./*; do cat "$file"; sleep 0.3

DopeGhoti · 2011-11-28 20:10:57 3
Write in a text file the contents of all the zip files in a directory.

It can be used to create an index of a backup directory or to find some file.
This is sample output - yours may be different.
-2

for file in *.zip; do unzip -l "$file" >> archiveindex.txt ; done;

chon8a · 2013-05-02 01:43:26 7
Reset the last modified time for each file in a git repo to its last commit time
This is sample output - yours may be different.
-2

for file in $( git ls-files ); do echo $file; touch -t $(git --no-pager log --date=local -1 --format="%ct" $file | php -r 'echo @date( "YmdHi.s", trim( file_get_contents( "php://stdin" ) ) );') $file; done

westonruter · 2015-07-01 00:28:06 13
stores the number of lines of "file" in a variable to use in a loop
This is sample output - yours may be different.
-3

count=`wc -l file | cut -d ' ' -f1`

vmplacco · 2009-02-25 21:21:47 5
convert all WAVs from any format (MS ADPCM) to PCM

I needed this for wine.
This is sample output - yours may be different.
-3

for file in $(find -type f -iname "*wav"); do mv $file "$file"_orig.WAV; mplayer -ao pcm "$file"_orig.WAV -ao pcm:file=$file; done

oernii · 2009-04-06 21:36:04 6
determine if a shared library is compiled as 32bit or 64bit

file displays a files type the -L flag means follow sym-links (as libraries are often sym-linked to another this behavior is likely preferred) more complex behavior (*two* grep commands!) could be used to determine if the file is or is not a shared library.
This is sample output - yours may be different.
-3

file -L <library> | grep -q '64-bit' && echo 'library is 64 bit' || echo 'library is 32 bit'

infinull · 2010-03-07 06:31:35 3
Recursive and alphabetical orderly cp
This is sample output - yours may be different.
-3

for file in `find *| sort -n | sed 's% %?%g'`; do echo "${file//?/ }"; cp --parents "${file//?/ }" /destinity_folder/ ;done

juanmi · 2011-05-23 16:34:08 7
Remove blank lines from a file and save output to new file
This is sample output - yours may be different.
-4

sed '/^$/d' file >newfile

haplo · 2009-09-24 19:22:49 5
download file1 file2 file3 file4 .... file 100

With counter format [001, 002, ..., 999] , nice with pictures or wallpapers collections.
This is sample output - yours may be different.
-4

for file in $(seq -f '%03.f' 1 $TOTAL ); do echo "($file/$TOTAL)"; curl -f -O http://domain.com/Name_$file.ext; done

nordri · 2010-01-12 15:23:44 6
a find and replace within text-based files, for batch text replacement, not using perl
This is sample output - yours may be different.
-5

for file in `find . -iname "FILENAME"`; do cat $file | sed "s/SEARCH_STRING/REPLACE_STRING/" > $file.tmp; mv $file.tmp $file; done

unixmonkey6754 · 2010-02-24 13:46:29 3
Numerate files, rename files in a directory by incremental number

Renames files in a directory to incremental numbers, following alphabetic order. The command does not maintain extensions.
This is sample output - yours may be different.
-5

declare -i i; i=0; for file in *; do i=`expr $i+1`; mv "$file" $i; done;

themiurgo · 2010-08-26 12:24:38 5
Numerate files, rename files in a directory by incremental number
This is sample output - yours may be different.
-5

declare -i i=0 ; for file in * ; do i=$[$i+1] ; mv "$file" $i; done

pepin · 2010-08-26 12:40:58 3
list with full path
This is sample output - yours may be different.
-6

for file in *; do echo $PWD/$file; done

Velenux · 2011-12-16 13:12:00 4
remove all dead symbolic links in a directory
This is sample output - yours may be different.
-8

for i in $(file * | grep broken | cut -d : -f 1); do rm $i; done

Znuff · 2010-11-02 16:10:42 10
list with full path

Also lists hidden files, current dir and topdir.
This is sample output - yours may be different.
-8

for file in * .*; do echo $PWD/$file; done

marek158 · 2011-12-16 13:42:07 3
Find broken symlinks
This is sample output - yours may be different.
-9

find . -type l | xargs file | grep broken

kineticrick · 2011-04-07 22:58:02 4
‹ First < 5 6 7

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how to allow a program to listen through the firewall

To allow a program ("programmaautorizzato" in example) to listen through the firewall

Default value or argument

I used it for this function, which prints hashes: function liner { num_lines=${1:-42} echo printf %${num_lines}s|tr " " "#" echo } Note the colon-dash, instead of the usual colon-equals.

Check wireless link quality with dialog box

The variable WIRELESSINTERFACE indicates your wireless interface

perl insert character on the first line on your file

Copy a directory recursively without data/files

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Find out my Linux distribution name and version

set a reminder for 5 days in the future

setup for reminder in 5 days, added the date in the future. To run a job at 4pm three days from now, you would do at 4pm + 3 days, to run a job at 10:00am on July 31, you would do at 10am Jul 31 and to run a job at 1am tomorrow, you would do at 1am tomorrow.

Advanced python tracing

Trace python statement execution and syscalls invoked during that simultaneously

Find Out My Linux Distribution Name and Version

Another way of do it in debian like distros, don't know if works for others

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Commands using file (166)

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