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awk, bash, curl, find, grep, Linux, sed

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Functions

Terminal - Commands using file - 149 results

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

2011-12-16 13:12:00

User: Velenux

Functions: echo file

Tags: echo ls

-6

Up
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list with full path

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

function xzv() { THREADS=`grep processor /proc/cpuinfo | wc -l`; for file in $*; do pv -s `stat -c%s $file` < $file | pxz -q -T $THREADS > $file.xz ; done; }

2011-12-14 08:22:08

User: oernii2

Functions: file wc

Tags: compression parallel oernii xz

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Parallel XZ with progress bar

You need: pxz for the actual work (http://jnovy.fedorapeople.org/pxz/). The function could be better with better multifile and stdin/out support.

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

2011-11-28 20:10:57

User: DopeGhoti

Functions: cat file sleep

-2

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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.

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file <filename>

2011-11-19 23:39:29

User: lordtoran

Functions: file

Tags: file files file format

-1

Up
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Get a file's type and metadata

Some shell newbies don't know this very handy file management related command so I decided to include it here.

You need to have the "file" package installed.

ls -1 $PATH*/* | xargs file | awk -F":" '!($2~/PDF document/){print $1}' |xargs rm -rf

2011-11-02 04:42:32

User: karuppasamy

Functions: awk file ls rm xargs

Tags: awk ls delete pdf rm

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delete the files from the given directory except the PDF file

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pv file | gzip > file.gz

2011-10-23 15:57:14

User: dash

Functions: file gzip

Tags: multicore gzip pv

Up
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gzip compression with progress bar and remaining time displayed

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for file in *.mp4; do mv "$file" "${file%.*} [$(cksfv -b -q "$file" | egrep -o "\b[A-F0-9]{8}\b$")].${file#*.}"; done

2011-09-13 16:53:28

User: skapi

Functions: file mv

Tags: egrep mv cksfv crc32

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Add crc32 checksum in the filenames of all mp4

Rename all mp4 files with crc32 information.

allVideos() { find ./ -type f -print0 | xargs -0 file -iNf - | grep ": video/" | cut -d: -f1; }

2011-08-19 11:58:59

User: totti

Functions: cut file find grep xargs

Tags: video find grep mime

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Find all videos under current directory using MIME a.k.a not using extension

Videos are found using their MIME type. Thus no need to for an extension for the video file.

This is a efficent version of "jnash" cmd (4086). Thanks for jnash. This cmd will only show video files while his cmd show files having "video" anywhere in path.

while IFS= read -r -u3 -d $'\0' file; do file "$file" | egrep -q 'executable|ELF' && chmod +x "$file"; done 3< <(find . -type f -print0)

2011-08-18 15:37:23

User: keymon

Functions: chmod egrep file find read

Up
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Set executable permissions only to executable files

If you make a mess (like I did) and you removed all the executable permissions of a directory (or you set executable permissions to everything) this can help.

It supports spaces and other special characters in the file paths, but it will work only in bash, GNU find and GNU egrep.

You can complement it with these two commands:

1. add executable permission to directories:

find . type d -print0 | xargs -0 chmod +x

2. and remove to files:

find . type d -print0 | xargs -0 chmod -x

Or, in the same loop:

while IFS= read -r -u3 -d $'\0' file; do case $(file "$file" | cut -f 2- -d :) in :*executable*|*ELF*|*directory*) chmod +x "$file" ;; *) chmod -x "$file" ;; esac || break done 3< <(find . -print0)

Ideas stolen from Greg's wiki: http://mywiki.wooledge.org/BashFAQ/020

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for i in *; do file $i | grep -q ELF || continue; readelf -d $i | grep -q RPATH || echo $i; done

2011-08-16 17:37:23

User: keymon

Functions: echo file grep readelf

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Check if the files in current directory has the RPATH variable defined

Using gentoo prefix portage I got in a situation where some packages did not contain the needed RPATH variable. This command helped me to find out which ones I should recompile

sedi(){ case $# in [01]|[3-9])echo usage: sedi sed-cmds file ;;2)sed -a ''"$1"';H;$!d;g;' $2 |sed -a '/^$/d;w '"$2"'' ;;esac;}

2011-07-27 02:36:53

User: argv

Functions: file sed

Up
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sed edit-in-place using -a option instead of -i option (no tmp file created)

does the -i option open a tmp file?

this method does not.

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find -L /proc/`ps aux | grep [f]lash | awk '{print $2}'`/fd/ | xargs file -L | grep Video | awk '{sub(/:/, ""); print $1}' | xargs vlc

2011-07-24 17:53:46

User: tuxcanfly

Functions: awk file find grep xargs

Up
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Play flash videos in VLC

If you used to do `vlc /tmp/Flash*`, but no longer can't, this is for you.

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for file in *; do mv -v "$file" "$(sed 's/ //g' <(echo $file))"; done

2011-07-10 21:08:31

User: laebshade

Functions: file mv

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Renames all files in the current directory such that the new file contains no space characters.

This is a better version, as it does no command piping, uses for instead of while loops, which allows for a list of files in the current working directory to be natively processed. It also uses the -v/verbose option with mv to let you know what the command is doing.

While the command does exactly the same in a better way, I would modify the sed option to replace spaces with underscores instead, or dashes.

Please note that you'll receive errors with this command as it tries to rename files that don't even have spaces.

This is an alternative to: http://www.commandlinefu.com/commands/view/8761/renames-all-files-in-the-current-directory-such-that-the-new-file-contains-no-space-characters.

fdupes -r -1 path | while read line; do j="0"; for file in ${line[*]}; do if [ "$j" == "0" ]; then j="1"; else ln -f ${line// .*/} $file; fi; done; done

2011-06-26 10:45:52

User: piti

Functions: file ln read

Up
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Replace duplicate files by hardlinks

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

2011-05-23 16:34:08

User: juanmi

Functions: cp echo file sed sort

-3

Up
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Recursive and alphabetical orderly cp

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find . -type l | xargs file | grep broken

2011-04-07 22:58:02

User: kineticrick

Functions: file find grep xargs

Tags: find xargs symlinks

-9

Up
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Find broken symlinks

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fdupes -r -1 path | while read line; do j="0"; for file in ${line[*]}; do if [ "$j" == "0" ]; then j="1"; else sudo ln -f ${line// .*/} $file; fi; done; done

2011-03-07 11:16:09

User: piti

Functions: file ln read sudo

-1

Up
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Replace duplicate files by hardlinks

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rmall_but() { declare -A keep;for arg;do keep[${arg%/}]=1;done;for file in *;do [[ ${keep[$file]} ]] || rm -rf "$file";done; }

2011-02-05 14:38:54

User: RanyAlbeg

Functions: file rm

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Using associative array to remove all files and directories under PWD except "$1", "$2", "$3",..."$n"

file -s /dev/sd*

2010-12-28 09:56:03

User: mhs

Functions: file

Tags: file devfs

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Use file(1) to view device information

file(1) can print details about certain devices in the /dev/ directory (block devices in this example). This helped me to know at a glance the location and revision of my bootloader, UUIDs, filesystem status, which partitions were primaries / logicals, etc.. without running several commands.