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Commands tagged sed

Terminal - Commands tagged sed - 286 results

sed -i "s/$\x09\{1,\}$\|$ \{1,\}$/ /g;s/$\x09\{1,\}$$\|$ \{1,\}$$//g" brisati.txt

2011-12-12 10:24:03

User: knoppix5

Functions: sed

Tags: sed replace multiple spaces textfile tabs

-4

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Get rid of multiple spaces/tabs in a text file

This command does the following:

- converts any sequence of multiple spaces/tabs to one space only

- completely removes any space(s)/tab(s) at the end of each line

(If spaces and tabs are mixed in a sequence i.e. [tab][tab][space][tab], you have to execute this command twice!)

echo foobar | sed -r 's/(^.|.$)//g'

2011-11-19 16:19:07

User: ebraminio

Functions: echo sed

Tags: bash sed

Up
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Remove the first and the latest caracter of a string

Just an other solution :)

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

sed -i '$a\FOOBAR' *

2011-11-19 03:45:36

User: sputnick

Functions: sed

Tags: sed glob

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Append a new line "FOOBAR" in all files matching the glob*

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seq 1 3 20 | awk '{ T[NR]=$1} END {for (i=1;i<=(NR-1);i++) print T[i+1],"-",T[i],"=" , T[i+1]-T[i]}'

2011-11-13 10:36:18

User: benoit_c_lbn

Functions: awk seq

Tags: sed

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subtraction between lines

It's allways strange for me to see sed and awk in the same command line if you can avoid it

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seq 1 3 20 | sed -n '1{h;d};H;x;s/\n/\t/p' | awk '{printf("%d - %d = %d\n", $2, $1, $2-$1)}'

2011-11-10 10:38:11

User: kev

Functions: awk sed seq

Tags: sed

Up
Down

subtraction between lines

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sshostnew () {sed -i "$1d" $HOME/.ssh/known_hosts ; }

2011-11-07 10:33:04

User: _john

Tags: ssh sed

-1

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ssh hostchange know_host improver

If you work in an environment, where some ssh hosts change regularly this might be handy...

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nocomments () { cat $1 | egrep -v '^[[:space:]]*#|^[[:space:]]*$|^[[:space:]]*;' | sed '//d' | sed '//d'; }

2011-11-04 12:47:39

User: RuizTapiador

Functions: cat egrep sed

Tags: sed grep comment

Up
Down

Hide comments

Hide comments and empty lines, included XML comments,

sed -n '1~5{N;N;p}' file.txt

2011-10-26 16:15:34

User: kev

Functions: sed

Tags: sed

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pick up 3 lines start at every 5th line of file.txt

sed '4~5,+1d' file.txt

sed G file.txt

2011-10-26 15:14:24

User: kev

Functions: sed

Tags: sed

Up
Down

append empty line after every line in file.txt

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seq 9 | sed 'H;g' | awk -v RS='' '{for(i=1;i<=NF;i++)printf("%dx%d=%d%s", i, NR, i*NR, i==NR?"\n":"\t")}'

2011-10-22 18:41:09

User: kev

Functions: awk sed seq

Tags: sed awk

Up
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print multiplication formulas

seq -s ' ' 1 9 | sed -n ':a;p;s/ *\w$//;h;/^$/t;b a;q' | tac | awk '{for(i=1;i

1x1=1

1x2=2 2x2=4

1x3=3 2x3=6 3x3=9

1x4=4 2x4=8 3x4=12 4x4=16

1x5=5 2x5=10 3x5=15 4x5=20 5x5=25

1x6=6 2x6=12 3x6=18 4x6=24 5x6=30 6x6=36

1x7=7 2x7=14 3x7=21 4x7=28 5x7=35 6x7=42 7x7=49

1x8=8 2x8=16 3x8=24 4x8=32 5x8=40 6x8=48 7x8=56 8x8=64

1x9=9 2x9=18 3x9=27 4x9=36 5x9=45 6x9=54 7x9=63 8x9=72 9x9=81

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grep -n log4j MainPm.java | sed -e 's/^$[^:]*$:$.*$/\2 \1/'

2011-10-21 12:50:30

User: bash_vi

Functions: grep sed

Tags: sed grep regex

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move linenumbers of grep output to end of line

Uses sed with a regex to move the linenumbers to the line end. The plain regex (w/o escapes) looks like that:

^([^:]*):(.*)

grep -rlZ oldstring . | xargs -0 sed -i -e 's/oldstring/newstring/'

2011-10-18 19:14:02

User: thoughtcriminal

Functions: grep sed xargs

Tags: sed

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recursive search and replace old with new string, inside files

Using -Z with grep and -0 with xargs handles file names with spaces and special characters.

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curl -u username --silent "https://mail.google.com/mail/feed/atom" | awk 'BEGIN{FS="\n";RS="(</entry>\n)?<entry>"}NR!=1{print "\033[1;31m"$9"\033[0;32m ("$10")\033[0m:\t\033[1;33m"$2"\033[0m"}' | sed -e 's,<[^>]*>,,g' | column -t -s $'\t'

2011-10-15 23:15:52

User: frntn

Functions: awk column sed

Tags: Linux sed awk column curl rss gmail

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Check your unread Gmail from the command line

Just an alternative with more advanced formating for readability purpose. It now uses colors (too much for me but it's a kind of proof-of-concept), and adjust columns.

title() { sed 's/\<\w*/\u&/g' <<<$@; }

2011-10-11 01:23:12

User: kev

Functions: sed

Tags: sed

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return a titlecased version of the string[str.title() in python]

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svn status|grep -iR '^!'|sed 's/!/ /g'|xargs -i svn rm '{}'

2011-10-06 08:11:25

User: erdeszt

Functions: grep rm sed xargs

Tags: svn sed xargs grep

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Mark manually deleted files as deleted in svn

Helps if you accidentally deleted files from an svn repo with plain rm and you would like to mark them for svn to delete too.

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tail -n +<N> <file> | head -n 1

2011-09-30 08:30:30

User: qweqq

Functions: head tail

Tags: sed awk tail grep printing print line number

-5

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To print a specific line from a file

Tail is much faster than sed, awk because it doesn't check for regular expressions.

echo "command lines" | rev | cut -c 2- | rev

2011-09-21 11:27:52

User: ztank1013

Functions: cut echo ping rev

Tags: sed awk cut rev

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Remove the last string character using rev and cut

In case sed and awk are not available you may use this to remove the last character from a string with "rev" and "cut".

read -ra words <<< "<sentence>" && echo "${words[@]^}"

2011-09-10 02:46:42

User: RanyAlbeg

Functions: echo read

Tags: sed tr capitalize

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Capitalize first letter of each word in a string

I find it useless but definitely simpler than #9230

echo 'fOo BaR' | tr '[A-Z]' '[a-z]' | sed 's/$^\| $$[a-z]$/\1\u\2/g'

2011-09-09 21:40:31

User: caiosba

Functions: echo sed tr

Tags: sed tr capitalize

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Capitalize first letter of each word in a string

Capitalize first letter of each word in a string.

sed -i 's/[ \t]\+$//g' file.txt

2011-09-07 01:47:44

User: elder

Functions: sed

Tags: sed regex

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Remove trailing whitespaces (or tabs) from a text file

This command is useful when you are programming, for example.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

perl -ne '$. == 4 && print && exit'

2011-09-05 21:52:16

User: bashrc

Functions: perl

Tags: Text Processing sed

-1

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Print just line 4 from a textfile

Perl version - just for completeness sake ;)

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sed '4!d'

2011-09-05 17:54:57

User: totti

Functions: sed

Tags: Text Processing sed

-1

Up
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Print just line 4 from a textfile

d --> delete

!d ---> delete others

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awk '{print $0/60;}' /proc/uptime

2011-08-31 10:41:21

User: ioggstream

Functions: awk

Tags: sed uptime minutes

-1

Up
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Uptime in minute

Get info directly from /proc/uptime

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

bc <<< `uptime | sed -e 's/^.*up //' -e 's/[^0-9:].*//' | sed 's/:/*60+/g'`

2011-08-29 10:24:43

User: totti

Functions: bc sed

Tags: sed uptime minutes

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Uptime in minute

Want to run scripts/programs in the system after starting X minute [ For letting the system to free ]? This will give uptime in minute.

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seq 20 | sed '5,6 { w out.txt }' #Can't print correctly. See sample output

2011-08-29 10:17:47

User: totti

Functions: sed seq

Tags: sed

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Read/Write output/input from sed to a file

Can't print correctly in the command field.

There is a new line before } as follows

seq 20 | sed -n '5,6 { w out.txt

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