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Commands using tail

Commands using tail from sorted by
Terminal - Commands using tail - 209 results
:|dd of=./ssss.txt seek=1 bs=$(($(stat -c%s ./ssss.txt)-$(tail -n 2 ./ssss.txt|wc -c)))
2011-10-17 07:53:00
User: ri0day
Functions: dd stat tail wc
0
Up
Down
faster replace sting with dd

new way to replace text file with dd,faster than head,sed,awk if you do this with big file

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
wget -qO - --post-data "data[Row][cripted]=1cb251ec0d568de6a929b520c4aed8d1" http://md5-decrypter.com/ | grep -A1 "Decrypted text" | tail -n1 | cut -d '"' -f3 | sed 's/>//g; s/<\/b//g'
2011-10-13 03:48:54
User: samhagin
Functions: cut grep sed tail wget
Tags: md5
0
Up
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Decrypt MD5

Decrypt MD5 , replace 1cb251ec0d568de6a929b520c4aed8d1 with the MD5 string you want to decrypt

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wget -qO - --post-data "data[Row][clear]=text" http://md5-encryption.com | grep -A1 "Md5 encrypted state" | tail -n1 | cut -d '"' -f3 | sed 's/>//g; s/<\/b//g'
2011-10-13 03:44:48
User: samhagin
Functions: cut grep sed tail wget
Tags: md5
0
Up
Down
Encrypt text to md5

Encrypt any text to MD5 , replace text with the string you want to convert to MD5

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sudo dpkg -i `ls -tr *.deb | tail -n4`
2011-10-09 14:20:11
User: _john
Functions: sudo tail
Tags: Debian Linux kernel dpkg
0
Up
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Install 4 new package files

after kernel build with make deb-pkg, I like to install the 4 newest packages that exist in the directory. Beware: might be fewer for you....

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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
Up
Down
To print a specific line from a file

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

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diff -U 9999 file_a file_b | tail -n +3 | grep -P "^(\ Header|\-|\+)"
2011-09-21 21:33:40
User: nnutter
Functions: diff grep tail
Tags: diff
0
Up
Down
Diff with Sections/Headers

Maybe very limited in its applicability but could be of use at times.

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tail -f LOGFILE | awk '{system("say \"" $0 "\"");}'
2011-09-16 06:20:06
User: tamouse
Functions: awk tail
Tags: awk tail say
-1
Up
Down
speak a chat log file while it's running

like #9295, but awkish instead of perlish

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tail -f LOGFILE | perl -ne '`say "$_"`;'
2011-09-16 05:33:22
User: tamouse
Functions: perl tail
Tags: perl tail say
0
Up
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speak a chat log file while it's running

say only processes a complete file, at eof, so following a file isn't possible. Quick and dirty perl oneliner to feed each line from the tail -f to say. Yes, expensive to lauch a new process each line.

This little ditty was prompted by a discussion on how horrible it is to use VoiceOver on ncurses programs such as irssi.

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head -n 13 /etc/services | tail -n 1
2011-09-15 19:39:49
User: muonIT
Functions: head tail
Tags: goto
-5
Up
Down
Go to the Nth line of file

Silly approach, but easy to remember...

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tail -f ~/.bash_history
2011-09-15 19:35:09
User: totti
Functions: tail
Tags: watch
-1
Up
Down
Watch end of files real time, especially log files

Changes are displayed when they are written to the file

to exit

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ls -trF | grep -v \/ | tail -n 1
2011-09-14 20:05:37
User: mrpollo
Functions: grep ls tail
Tags: find stat mtime
-1
Up
Down
Hunt for the newest file.

Sort by time and Reverse to get Ascending order, then display a marker next to the a file, negate directory and select only 1 result

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fn=$(find . -type f -printf "%T@\t%p\n"|sort -n|tail -1|cut -f2); echo $(date -r "$fn") "$fn"
2011-09-13 14:26:20
User: tzot
Functions: cut date echo find sort tail
Tags: find stat mtime
0
Up
Down
Hunt for the newest file.
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sudo netstat|head -n2|tail -n1 && sudo netstat -a|grep udp && echo && sudo netstat|head -n2|tail -n1 && sudo netstat -a|grep tcp
2011-09-08 18:54:36
User: brando56894
Functions: echo grep head netstat sudo tail
Tags: netstat udp tcp connections
0
Up
Down
Displays All TCP and UDP Connections
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search="whatyouwant";data=$(grep "$search" * -R --exclude-dir=.svn -B2 -A2);for((i=$(echo "$data" | wc -l);$i>0;i=$(($i-6)) )); do clear;echo "$data"| tail -n $i | head -n 5; read;done
2011-08-29 18:14:16
User: Juluan
Functions: echo grep head tail wc
-2
Up
Down
Grep with one result at a time

Not perfect but working (at least on the project i wrote it ;) )

Specify what you want search in var search, then it grep the folder and show one result at a time.

Press enter and then it will show the next result.

It can work bad on result in the firsts lines, and it can be improved to allow to come back.

But in my case (a large project, i was checking if a value wasn't used withouth is corresponding const and the value is "1000" so there was a lot of result ...) it was perfect ;)

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mount |tail -1 | less -p "/dev/[^ ]*"
2011-08-28 16:29:42
User: totti
Functions: less mount tail
Tags: device mount point
-3
Up
Down
last mounted device
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cd $(ls -ltr|grep ^d|head -1|sed 's:.*\ ::g'|tail -1)
2011-08-10 03:39:35
User: timothyhmchen101
Functions: cd grep head ls sed tail
-1
Up
Down
change dir to n-th dir that you listed

Replace the head -1 with head -n that is the n-th item you want to go to.

Replace the head with tail, go to the last dir you listed.

You also can change the parameters of ls.

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netstat -an |grep ":80" |awk '{print $5}' | sed s/::ffff://g | cut -d: -f1 |sort |uniq -c |sort -n | tail -1000 | grep -v "0.0.0.0"
2011-07-28 09:36:08
User: zeros
Functions: awk cut grep netstat sed sort tail uniq
0
Up
Down
Find all IP connected to my host through TCP connection and count it

Count and Find all IP connected to my host through TCP connection.

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NAME=`wget --quiet URL -O - | grep util-vserver | tail -n 1 | sed 's|</a>.*||;s/.*>//'`; wget URL$UTILVSERVER;
2011-07-17 13:01:20
User: WMP
Functions: grep sed tail wget
1
Up
Down
Download last file from index of
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ps aux | awk {'sum+=$3;print sum'} | tail -n 1
2011-07-16 16:16:59
User: tailot
Functions: awk ps tail
Tags: cpu shell usage ps command percentage
-1
Up
Down
Display CPU usage in percentage
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tail -f /var/log/squid/access.loc | ccze -CA
2011-07-15 14:58:53
User: longdrink
Functions: tail
Tags: perl log date time human timestamp squid human-readable
1
Up
Down
read squid logs with human-readable timestamp

The same with colors

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tail -n0 -f /var/log/messages | while read line; do notify-send "System Message" "$line"; done
2011-07-11 22:33:24
User: hukketto
Functions: read tail
Tags: notify-send
1
Up
Down
show each new entry in system messages as a popup

It willl popup a message for each new entry in /var/log/messages

found on the notify-send howto page on ubuntuforums.org.

Posted here only because it is one of the favourites of mine.

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REALUSERID=`TTYTEST=$(ps | awk '{print $2}' |tail -1); ps -ef |grep "$TTYTEST$" |awk '{print $1}'`;echo $REALUSERID
2011-07-09 16:27:21
User: khyron320
Functions: awk echo grep ps tail
Tags: sudo
0
Up
Down
Find the USERid of a SUDOed user

Find the USERid of a SUDOed user who has either left their terminal logged in or for scripting purposes to track who ran what commands.

This only applys to users that do sudo su - USERNAME. not sudo su USERNAME

Sudo su without the dash allows use of (echo $SUDO_USER)

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tail -f /var/log/squid/access.log | perl -p -e 's/^([0-9]*)/"[".localtime($1)."]"/e'
2011-07-06 08:55:27
User: godzillante
Functions: perl tail
Tags: perl log date time human timestamp squid human-readable
1
Up
Down
read squid logs with human-readable timestamp
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tail -f /var/log/logfile|perl -e 'while (<>) {$l++;if (time > $e) {$e=time;print "$l\n";$l=0}}'
2011-06-21 10:28:26
User: madsen
Functions: perl tail time
Tags: perl tail
2
Up
Down
Realtime lines per second in a log file

Using tail to follow and standard perl to count and print the lps when lines are written to the logfile.

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head -n1 sample.txt | tail -n1
2011-06-14 17:45:04
User: gtcom
Functions: head tail
Tags: tail HEAD
-1
Up
Down
Extract specific lines from a text file using Stream Editor (sed)

You can actually do the same thing with a combination of head and tail. For example, in a file of four lines, if you just want the middle two lines:

head -n3 sample.txt | tail -n2

Line 1 --\

Line 2 } These three lines are selected by head -n3,

Line 3 --/ this feeds the following filtered list to tail:

Line 4

Line 1

Line 2 \___ These two lines are filtered by tail -n2,

Line 3 / This results in:

Line 2

Line 3

being printed to screen (or wherever you redirect it).

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