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Commands using echo from sorted by
Terminal - Commands using echo - 1,221 results
echo "I am $BASH_SUBSHELL levels nested";
while true; do clear; cat /proc/[0-9]*/stat | cut -d' ' -f 3 | sort | uniq -c | awk '{print $2" "$1}'; echo '---'; sleep 1; done
echo thisIsATest | sed -E 's/([A-Z])/_\L\1/g'
for i in $(cat vulns.txt); do echo $i; rpm -qa ?changelog | grep -i $i; done
2014-04-30 16:11:14
User: sonny108
Functions: cat echo grep rpm
0

Found it online and could be very useful

csvcount() { for dir in $@; do echo -e "$(find $dir -name '*.csv' | wc -l)\t$dir"; done }
echo 16384 > /proc/sys/net/ipv4/neigh/default/gc_thresh1; echo 32768 > /proc/sys/net/ipv4/neigh/default/gc_thresh2; echo 65535 > /proc/sys/net/ipv4/neigh/default/gc_thresh3; echo 1 > /proc/sys/net/ipv4/icmp_ignore_bogus_error_responses
2014-04-25 00:18:58
User: andregyn62
Functions: echo
1

This command solve the problem ping: sendmsg: No buffer space available to.

for i in `grep -ri "?\|?\|?\|?\|?" * --col | cut -d: -f1 |sort -u `;do sed -i "s/?/\á/g" $i; sed -i "s/?/\é/g" $i; sed -i "s/?/\í/g" $i; sed -i "s/?/\ó/g" $i; sed -i "s/?/\ú/g" $i; echo "HTMLizing file [$i]";done
2014-04-24 11:43:36
User: linuxninja
Functions: cut echo sed sort
0

If we've many files containing (?, ?, ?, ?, ? ) characters instead of ?, ?,... etc,...

we can ue this simple command line running a sed command inside a for loop searching for files containing that characters.

Hope u like it! Enjoy! ;)

for file in /usr/bin/*; do pacman -Qo "$file" &> /dev/null || echo "$file"; done
2014-04-22 21:57:08
User: malathion
Functions: echo file
0

In this example I am returning all the files in /usr/bin that weren't put there by pacman, so that they can be moved to /usr/local/bin where they (most likely) belong.

getlunid() { lv=$(df -P $1|grep "^/dev/"|awk '{print $1}'|awk -F/ '{print $3}'); hd=$(lslv -l $lv|tail -1|awk '{print $1}');id=$(odmget -q "name like $hd AND attribute=unique_id" CuAt|grep "value ="|awk -F= '{print $2}'|tr -d '"');echo $id;}
2014-04-20 18:43:21
User: bigstupid
Functions: awk df echo grep tail tr
Tags: aix lvm SAN odm
0

For a given filesystem return the LUN ID. Command assumes 1:1 relationship between fs:lv:hdisk:lun which may not be the case in all environments.

: $(cal [$month $year]) ; echo $_
echo -n test@example.com | md5sum | (read hash dash ; echo "https://secure.gravatar.com/avatar/${hash}")
cat dictionary.txt|while read a; do echo $a|cryptsetup luksOpen /dev/sda5 sda5 $a && echo KEY FOUND: $a; done
2014-04-16 18:49:53
User: rodolfoap
Functions: cat echo read
0

Lost your luks passphrase? You can always bruteforce from the command line. See the sample output, a simple command using a dictionary.

for a in {p,P}{a,A,4}{s,S,5}{s,S,5}; do echo $a|cryptsetup luksOpen /dev/sda5 $a && echo KEY FOUND: $a; done
2014-04-16 18:41:50
User: rodolfoap
Functions: echo
0

Lost your luks passphrase? You can always bruteforce from the command line. See the sample output, a simple command for the "pass" word, using combinations of upper/lowercase or number replacement. The generated combinations are:

for a in {p,P}{a,A,4}{s,S,5}{s,S,5}; do echo $a; done

pass

pasS

pas5

paSs

paSS

paS5

...

for id in `ls -1 ~/.ssh | grep -v "authorized\|known_hosts\|config\|\."` ; do echo -n "$id: " ; ssh-keygen -l -f .ssh/$id ; done
2014-04-16 14:12:20
User: drockney
Functions: echo grep id ssh-keygen
0

Find all private keys and dump their fingerprints.

for file in $(find . -name *.mp4); do ogv=${file%%.mp4}.ogv; if test "$file" -nt "$ogv"; then echo $file' is newer then '$ogv; ffmpeg2theora $file; fi done
echo thisIsATest | sed -r 's/([A-Z])/_\L\1/g'
2014-04-11 13:36:08
User: flatcap
Functions: echo sed
Tags: sed
1

Convert a camelCase string into snake_case.

To complement senorpedro's command.

echo $(sudo lshw -businfo | grep -B 1 -m 1 $(df "/path/to/file" | tail -1 | awk '{print $1}' | cut -c 6-8) | head -n 1 | awk '{print $1}' | cut -c 5- | tr ":" "-") | sudo tee /sys/bus/usb/drivers/usb/unbind
2014-04-06 12:06:29
User: tweet78
Functions: awk cut df echo grep head sudo tail tee tr
29

You have an external USB drive or key.

Apply this command (using the file path of anything on your device) and it will simulate the unplug of this device.

If you just want the port, just type :

echo $(sudo lshw -businfo | grep -B 1 -m 1 $(df "/path/to/file" | tail -1 | awk '{print $1}' | cut -c 6-8) | head -n 1 | awk '{print $1}' | cut -c 5- | tr ":" "-")

for i in {1..256};do p=" $i";echo -e "${p: -3} \\0$(($i/64*100+$i%64/8*10+$i%8))";done|cat -t|column -c120
2014-04-04 16:54:53
User: AskApache
Functions: cat column echo
6

Prints out an ascii chart using builtin bash! Then formats using cat -t and column.

The best part is:

echo -e "${p: -3} \\0$(( $i/64*100 + $i%64/8*10 + $i%8 ))";

From: http://www.askapache.com/linux/ascii-codes-and-reference.html

echo "this_is_a_test" | sed -r 's/_([a-z])/\U\1/g'
echo 1395767373016 | gawk '{print strftime("%c", ( $0 + 500 ) / 1000 )}'
find . -name '*.mp3' | sort | while read -r mp3; do echo -e "<h3>$mp3</h3>\n<audio controls src=\"$mp3\"></audio>"; done > index.html; python -m http.server
2014-03-24 15:01:49
User: hendry
Functions: echo find python read sort
Tags: audio browser
1

I tried a few curses based mp3 players for playing back choir practice songs for my wife.

Unfortunately none of the ones I tried were capable of scrubbing a track.

Firefox saves the day.

while read i; do [ ${#i} -gt 72 ] && echo "$i"; done < /path/to/file
2014-03-20 12:27:06
User: flatcap
Functions: echo read
1

Filter out lines of input that contain 72, or fewer, characters.

This uses bash only. ${#i} is the number of characters in variable i.

alias ...='while read line; do echo -n "."; done && echo ""'
alias oath='temp=$(pbpaste) && oathtool --base32 --totp "YOUR SEED HERE" | pbcopy && sleep 3 && echo -n $temp | pbcopy'
2014-03-14 19:21:18
Functions: alias echo sleep
0

Typing a word in terminal is easier than digging your phone out, opening your two-factor authentication app and typing the code in manually.

This alias copies the one-time code to your clipboard for 3 seconds (long enough to paste it into a web form), then restores whatever was on the clipboard beforehand.

This command works on Mac. Replace pbpaste/pbcopy with your distribution's versions.

for gz in `find . -type f -name '*.gz' -print`; do f=`basename $gz .gz` && d=`dirname $gz` && echo -n `ls -s $gz` "... " && gunzip -c $gz | bzip2 - -c > $d/$f.bz2 && rm -f $gz && echo `ls -s $d/$f.bz2`; done
2014-03-13 08:36:24
User: pdwalker
Functions: bzip2 echo gunzip rm
0

- recompresses all gz files to bz2 files from this point and below in the directory tree

- output shows the size of the original file, and the size of the new file. Useful.

- conceptually easier to understand than playing tricks with awk and sed.

- don't like output? Use the following line:

for gz in `find . -type f -name '*.gz' -print`; do f=`basename $gz .gz` && d=`dirname $gz` && gunzip -c $gz | bzip2 - -c > $d/$f.bz2 && rm -f $gz ; done