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Terminal - Commands using echo - 1,192 results

echo $RANDOM

2009-02-17 14:41:06

User: mikeda

Functions: echo

Up
Down

generate random number

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

echo foo bar foobar barfoo && echo !$ !^ !:3 !* && echo /usr/bin/foobar&& echo !$:h !$:t

2009-02-17 09:10:17

User: lhb

Functions: echo

Up
Down

bash shortcut: !$ !^ !* !:3 !:h and !:t

When expanding, bash output the command, so don't be affraid if you type the command.

Here is the details:

First examples:

echo foo bar foobar barfoo

First argument:

echo !$

echo barfoo

barfoo

(Note that typing echo foo bar foobar barfoo && echo !$, bash substitute !$ with $:1)

Last argument:

echo foo bar foobar barfoo && echo !^

echo foo bar foobar barfoo && echo barfoo

foo bar foobar barfoo

barfoo

All the arguments:

echo !*

echo foo bar foobar barfoo

foo bar foobar barfoo

The third argument:

echo foo bar foobar barfoo && echo !:3

echo foo bar foobar barfoo && echo foobar

foo bar foobar barfoo

foobar

You may want to add {} for large numbers: echo !:{11} for example

Now with path:

echo /usr/bin/foobar

/usr/bin/foobar

For the head:

echo !$:h

echo /usr/bin

/usr/bin

And the tail:

echo !$:t

echo foobar

foobar

You also may want to try !:h and !:t or !!3-4 for the third and the fourth (so !!:* == !!:1-$)

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

for i in `seq -f %03g 5 50 111`; do echo $i ; done

2009-02-17 08:41:44

User: lhb

Functions: echo

Up
Down

a for loop with filling 0 format, with seq

seq allows you to format the output thanks to the -f option. This is very useful if you want to rename your files to the same format in order to be able to easily sort for example:

for i in `seq 1 3 10`; do touch foo$i ;done

And

ls foo* | sort -n

foo1

foo10

foo4

foo7

But:

for i in `seq -f %02g 1 3 10`; do touch foo$i ;done

ls foo* | sort -n

foo01

foo04

foo07

foo10

START=20; END=50 echo $(($START+(`od -An -N2 -i /dev/random`)%($END-$START+1)))

2009-02-17 05:05:30

User: pyrho

Functions: echo

Up
Down

Generate a random number in a range

This commands lets you generate a random number between the range [$START; $END].

echo *

2009-02-16 21:20:13

User: grep

Functions: echo

Up
Down

faster version of ls *

I know its not much but is very useful in time consuming scripts (cron, rc.d, etc).

echo "<?php phpinfo(); ?>" | php > phpinfo.txt

2009-02-16 19:02:01

User: jacquesloonen

Functions: echo

Up
Down

phpinfo from the command line

show phpinfo(); from the command line

echo "SELECT * FROM table; " | mysql -u root -p${MYSQLROOTPW} databasename | sed 's/\t/","/g;s/^/"/;s/$/"/;s/\n//g' > outfile.csv

2009-02-16 18:55:18

User: jacquesloonen

Functions: echo sed

Up
Down

Export MySQL query as .csv file

This command converts a MySQL query directly into a .csv (Comma Seperated Value)-file.

echo "sed -e"|perl -pe 's/sed -e/perl -pe/'

2009-02-16 18:39:06

User: drossman

Functions: echo

-1

Up
Down

use perl instead of sed

Replace sed regular expressions with perl patterns on the command line.

The sed equivalent is: echo "sed -e"|sed -e 's/sed -e/perl -pe/'

echo "Set Twitter Status" ; read STATUS; curl -u user:pass -d status="$STATUS" http://twitter.com/statuses/update.xml

2009-02-16 14:34:05

User: ronz0

Functions: echo read

-2

Up
Down

Improvement of curl + Twitter

Modify the script for your username and password, and save it as a script. Run the script, and enjoy ./tweet

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

for (( i = 0; i < 100; i++ )); do echo "$i"; done

2009-02-16 03:19:26

User: themattrix

Functions: echo

Up
Down

Perform a C-style loop in Bash.

Print 0 through 99, each on a separate line.

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

echo 'example' | sed -e 's/^$.$/\U\1/'

2009-02-16 02:14:27

User: agentk

Functions: echo sed

-4

Up
Down

Convert the first character of a string to uppercase

echo $(( (1234567890 - `date -u +\%s`) / 60 / 60 ))

2009-02-13 19:46:08

User: bartman

Functions: echo

Up
Down

hours before the time()==1234567890

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

echo $PATH | tr : \\n

2009-02-13 15:54:58

User: piyo

Functions: echo tr

Up
Down

Display your ${PATH}, one directory per line

This works in bash and zsh.

You may also want to alias it, if you need to look at it often...

alias lpath="echo \$PATH | tr : \\\\n"

"\$PATH" to make sure to look at your current $PATH

svn st | grep /main/java | awk '{print $2}' | xargs echo | xargs svn ci -m "my comment here"

2009-02-11 16:31:05

User: Antoine

Functions: awk echo grep xargs

-2

Up
Down

Commit all the changes in your java code

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

for ip in $(seq 1 25); do ping -c 1 192.168.0.$ip>/dev/null; [ $? -eq 0 ] && echo "192.168.0.$ip UP" || : ; done

2009-02-11 14:57:34

User: kakaroto_win2k

Functions: echo ping seq

-1

Up
Down

how to like to know if a host is ON

this is very useful when there is a different network host to determine which are turned on or not

echo $0

2009-02-11 08:58:01

User: yogsototh

Functions: echo

Up
Down

know the current running shell (the true)

Return the current shell. It is better than print $SHELL which can sometimes return a false value.

while read line; do echo -e "$line@mail.com"; done < list.txt

2009-02-11 08:31:01

User: irraz

Functions: echo read

Up
Down

@mail.com by adding the line in list.txt

Add @mail.com each line of a list

i=0; f=$(find . -type f -iregex ".*jpg");c=$(echo $f|sed "s/ /\n/g"| wc -l);for x in $f;do i=$(($i + 1));echo "$x $i of $c"; mogrify -strip $x;done

2009-02-11 03:50:53

User: flaxeater

Functions: echo find wc

Up
Down

Remove EXIF data from images with progress

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echo 'ibase=10; obase=2; 127' | bc

2009-02-09 20:22:47

User: azumakuniyuki

Functions: echo

Up
Down

Convert from a decimal number to a binary number

echo 16i `echo "F" | tr '[a-f]' '[A-F]'` p | dc ; echo 16o "15" p | dc

2009-02-09 08:38:19

User: sedcommand

Functions: echo tr

Up
Down

convert hex to decimal ; decimal to hex

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

for i in $(seq 1 50) ; do echo Iteration $i ; done

2009-02-08 23:03:31

User: abcde

Functions: echo seq

Up
Down

seq can produce the same thing as Perl's ... operator.

Optionally, one can use {1..50} instead of seq. E.g. for i in {1..50} ; do echo Iteration $i ; done

echo -n m{1..5}.cluster.net | xargs -d' ' -n1 -P5 -I{} ssh {} 'uptime'

2009-02-08 12:34:04

User: jianingy

Functions: echo ssh xargs

Up
Down

run command on a group of nodes in parallel

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

sudo echo 1 > /proc/acpi/asus/camera

2009-02-07 21:57:01

User: orie

Functions: echo sudo

Up
Down

Switch on eeepc camera

In some applications on eeepc xandros 7, default OS, video ccamera is not available untill you enter this command

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

echo "Xc" | tr "Xo" "\033\017

2009-02-07 18:55:27

User: mnikhil

Functions: echo tr

-2

Up
Down

reset the bizzarre gone junk terminal to normal

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

now=`date +"%Y/%m/%d" -d "04/02/2005"` ; end=`date +"%Y/%m/%d" -d "07/31/2005"`; while [ "$now" != "$end" ] ; do now=`date +"%Y/%m/%d" -d "$now + 1 day"`; echo "$now"; done

2009-02-07 18:46:49

User: mnikhil

Functions: echo

-1

Up
Down

To generate the list of dates using bash shell

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

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