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Commands using file

Terminal - Commands using file - 131 results

file -s /dev/sd*

2010-12-28 09:56:03

User: mhs

Functions: file

Tags: file devfs

Up
Down

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.

See also:

file -s /dev/dm-* file -s /dev/cciss/*

etc..

for file in $(find ~/ -iname "*.mp3");do c=$(mp3info $file|grep Genre|cut -f 3 -d :|cut -f 2 -d " ");if [ -z "$c" ];then c="Uncategorized";fi;if [ ! -e $c ];then touch $c.m3u;fi;echo "$file">>$c.m3u;done

2010-12-13 20:43:05

User: dzup

Functions: cut echo file find grep touch

Up
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Create a simple playlist sort by Genre using mp3info

cat file | tr -d "\n"

2010-12-02 09:22:02

User: uzsolt

Functions: cat file tr

Tags: Text Processing

-1

Up
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Join lines

This command deletes the "newline" chars, so its output maybe unusable :)

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cat file | tr "\n" " "

2010-12-02 09:21:02

User: uzsolt

Functions: cat file tr

Tags: Text Processing

Up
Down

Join lines

It's works only when you replace '\n' to ONE character.

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tail -f file |xargs -IX printf "$(date -u)\t%s\n" X

2010-11-25 11:23:13

User: unefunge

Functions: file printf tail xargs

Tags: tail xargs date printf logging

Up
Down

Monitor a file with tail with timestamps added

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tail -f file | awk '{now=strftime("%F %T%z\t");sub(/^/, now);print}'

2010-11-25 04:11:52

User: arcege

Functions: awk file tail

Tags: awk tail

Up
Down

Monitor a file with tail with timestamps added

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tail -f file | while read line; do printf "$(date -u '+%F %T%z')\t$line\n"; done

2010-11-24 05:50:12

User: derekschrock

Functions: file printf read tail

Tags: tail date

Up
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Monitor a file with tail with timestamps added

Should be a bit more portable since echo -e/n and date's -Ins are not.

tail -f file | while read line; do echo -n $(date -u -Ins); echo -e "\t$line"; done

2010-11-19 10:01:57

User: hfs

Functions: date echo file read tail

Tags: tail date

Up
Down

Monitor a file with tail with timestamps added

This is useful when watching a log file that does not contain timestamps itself.

If the file already has content when starting the command, the first lines will have the "wrong" timestamp when the command was started and not when the lines were originally written.

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for file in $( vmrun list | grep 'vmx$' | sort ); do printf "% 40s %s M\n" $(echo "$( echo -n ${file}:\ ; grep memsize $file )" | sed -e 's/.*\///' -e 's/"//g' -e 's/memsize.=//'); done;

2010-11-19 06:14:11

User: linuxrawkstar

Functions: echo file grep printf sed sort

Tags: vmware

-1

Up
Down

get memory configuration (not consumption) for all running VMware virtual machines

So your boss wants to know how much memory has been assigned to each virtual machine running on your server... here's how to nab that information from the command line while logged in to that server

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

2010-11-02 16:10:42

User: Znuff

Functions: cut file grep rm

-6

Up
Down

remove all dead symbolic links in a directory

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for file in *.png; do mogrify -trim "$file"; done

2010-10-21 13:58:05

User: depesz

Functions: file

Tags: convert png trim

Up
Down

Trim png files in a folder

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for file in `ls *.png`; do convert -trim $file $file; done

2010-10-21 13:20:30

User: adrienhaxaire

Functions: file

Tags: convert png trim

Up
Down

Trim png files in a folder

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for file in `cat urls.txt`; do echo -n "$file " >> log.txt; curl --head $file >> log.txt ; done

2010-10-19 02:54:13

User: Glutnix

Functions: echo file

Tags: status log curl HEAD http files list download http_code url

-1

Up
Down

Get all the HTTP HEAD responses from a list of urls in a file

urls.txt should have a fully qualified url on each line

prefix with

rm log.txt;

to clear the log

change curl command to

curl --head $file | head -1 >> log.txt

to just get the http status

file /bin/* | msort -j -l -n-1 -n2 2> /dev/null

2010-10-05 00:37:33

User: b_t

Functions: file

Tags: sort msort

Up
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Sort on multiple dis-contiguous keys/fields (can even specify key number/field from the end)

Notes:

1) -n-1 means sort key is the last field

2) -l is important if each separate record is on a new line (usually so for text files)

3) -j tells msort not to create log file (msort.log) in the working directory

4) may need to install msort package.

5) msort does lot more. Check man msort

rd(){ while read a ;do printf "$a\n";sleep ${1-1};done ;} # usage: rd < file ; or ... | rd

2010-10-03 04:16:03

User: argv

Functions: file printf read sleep

Up
Down

scroll file one line at a time (w/only UNIX base utilities)

usage examples

ls largedir |rd

lynx -dump largewebsite.com |rd

rd < largelogfile

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file=orig.ps; for i in $(seq `grep "Pages:" $file | sed 's/%%Pages: //g'`); do psselect $i $file $i\_$file; done

2010-09-24 19:44:32

User: damncool

Functions: file sed seq

-1

Up
Down

split a postscript file

splits a postscript file into multiple postscript files. for each page of the input file one output file will be generated. The files will be numbered for example 1_orig.ps 2_orig.ps ...

The psselect commad is part of the psutils package

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for file in *.jpg; do convert "$file" -resize 800000@ -quality 80 "small.$file"; done

2010-09-13 19:06:14

User: grinob

Functions: file

Tags: xargs convert

Up
Down

resize all JPG images in folder and create new images (w/o overwriting)

Convert all jpegs in the current directory into ~1024*768 pixels and ~ 150 KBytes jpegs

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

2010-08-26 12:40:58

User: pepin

Functions: file mv

Tags: rename numerate

-6

Up
Down

Numerate files, rename files in a directory by incremental number

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

2010-08-26 12:24:38

User: themiurgo

Functions: file mv

Tags: rename numerate

-5

Up
Down

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.

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file /music/dir/* | grep -v 44.1 | sed 's/:.*//g' | grep .mp3 | { while IFS= read; do filebak="\"$REPLY.original\""; file="\"$REPLY\""; mv $file $filebak; sox -t mp3 $filebak $file rate 44k; done; };

2010-08-12 21:53:28

User: IgnitionWeb

Functions: file grep mv sed

Tags: mp3 sox resample

-1

Up
Down

Resample MP3's to 44.1kHz

This heavy one liner gets all the files in the "/music/dir/" directory and filters for non 44.1 mp3 files. After doing this it passes the names to sox in-order to re-sample those files. The original files are left just in case.

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file=ftp://ftp.gimp.org/pub/gimp/v2.6/gimp-2.6.10.tar.bz2; ssh server "wget $file -O -" > $PWD/${file##*/}

2010-08-02 15:59:45

User: michaelmior

Functions: file ssh

Tags: ssh bash download

Up
Down

Download a file securely via a remote SSH server

This command will download $file via server. I've used this when FTP was broken at the office and I needed to download some software packages.

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for file in $(ls /usr/bin ) ; do man -w $file 2>> nomanlist.txt >/dev/null ; done

2010-07-26 19:39:53

User: camocrazed

Functions: file ls man

Tags: man

-2

Up
Down

Get a list of commands for which there are no manpages

This takes quite a while on my system. You may want to test it out with /bin first, or background it and keep working.

If you want to get rid of the "No manual entry for [whatever]" and just have the [whatever], use the following sed command after this one finishes.

sed -n 's/^No manual entry for $.*$/\1/p' nomanlist.txt

gophpdoc() { if [ $# -lt 2 ]; then echo $0 '< file > < title > [ pdf ]'; return; fi; if [ "$3" == 'pdf' ]; then ot=PDF:default:default; else ot=HTML:frames:earthli; fi; phpdoc -o $ot -f "$1" -t docs -ti "$2" }

2010-06-09 01:15:04

User: meathive

Functions: echo file

Up
Down

phpdoc shortcut

A shortcut to generate documentation with phpdoc. Defaults to HTML; optionally to PDF if third argument is given. Stores documentation in cwd under ./docs/. I forget the syntax to the output, -o, option, so this is easier.

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cut -d'/' -f3 file | sort | uniq -c

2010-05-23 16:02:51

User: foolano

Functions: cut file sort uniq

Up
Down

Count accesses per domain

count the times a domain appears on a file which lines are URLs in the form http://domain/resource.

grep -Eo $[0-9]\{1,3\}[\.]$\{3\}[0-9] file | sort | uniq

2010-05-23 11:23:57

User: foolano

Functions: file grep sort

Tags: grep ip address

Up
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Extract IPv4 addressess from file

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