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Commands using tail

Commands using tail from sorted by
Terminal - Commands using tail - 208 results
watch 'ls -tr1 | tail -n1 | xargs tail'
2013-05-09 11:37:59
User: batandwa
Functions: tail watch xargs
Tags: tail ls xargs watch
-4
Up
Down
Poll and print end of lates modified file

Watches for file modifications in the current directory and tails the file.

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cat .bash_history | tail -100 | grep {command}
2013-04-10 10:40:52
User: techie
Functions: cat grep tail
Tags: history cat tail grep
-9
Up
Down
Easily find an old command you run

I know how hard it is to find an old command running through all the files because you couldn't remember for your life what it was. Heres the solution!! Grep the history for it. depending on how old the command you can head or tail or if you wanted to search all because you cannot think how long ago it was then miss out the middle part of the command. This is a very easy and effective way to find that command you are looking for.

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ls -Sh **/*(.Lm+100) | tail -5
2013-03-21 20:22:11
User: khayyam
Functions: ls tail
Tags: tail ls zsh
1
Up
Down
Find top 5 big files

zsh: list of files sorted by size, greater than 100mb, head the top 5. '**/*' is recursive, and the glob qualifiers provide '.' = regular file, 'L' size, which is followed by 'm' = 'megabyte', and finally '+100' = a value of 100

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ls -lT -rt | grep "^-" | awk 'BEGIN {START=2002} (START <= $9){ print $10 ;START=$9 }' | tail -1
2013-02-24 23:39:22
User: Glamdring
Functions: awk grep ls tail
Tags: ls date osx
0
Up
Down
Order all files oldest to newest then get the last one touched

On the Mac, the 'ls' function can sort based on month/day/time, but seems to lack ability to filter on the Year field (#9 among the long listed fields). The sorted list continuously increases the 'START' year for the most recently accessed set of files. The final month printed will be the highest month that appeared in that START year. The command does its magic on the current directory, and suitably discards all entries that are themselves directories. If you expect files dating prior to 2002, change the START year accordingly.

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(echo -e "HTTP/1.1 200 Ok\n\r"; tail -f /var/log/syslog) | nc -l 1234
2013-02-09 06:15:42
User: adimania
Functions: echo tail
Tags: tail log http nc tail -f
4
Up
Down
Tail a log-file over the network

This one is tried and tested for Ubuntu 12.04. Works great for tailing any file over http.

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while true; do (date | tr "\n" ";") && ping -q -c 1 www.google.com|tail -1|cut -d/ -f5 ;sleep 1; done >> uptime.csv
2013-02-06 22:06:09
User: fanchok
Functions: cut date ping sleep tail tr
0
Up
Down
csv file of ping every minutes

Used in OS X.

tr "\n" ";"

may be replaced by

echo ";"

with linux versions of date.

I reused

ping -q -c 1 www.google.com|tail -1|cut -d/ -f5

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
largest() { dir=${1:-"./"}; count=${2:-"10"}; echo "Getting top $count largest files in $dir"; du -sx "$dir/"* | sort -nk 1 | tail -n $count | cut -f2 | xargs -I file du -shx file; }
2013-01-21 09:45:21
User: jhyland87
Functions: cut du echo file sort tail xargs
Tags: du file size file sizes
1
Up
Down
Get top N files in X directory

You can simply run "largest", and list the top 10 files/directories in ./, or you can pass two parameters, the first being the directory, the 2nd being the limit of files to display.

Best off putting this in your bashrc or bash_profile file

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find . -type f -printf "%T@ %Tc %p\n" |sort -n |cut -d' ' -f2- |tail -n20
2012-12-04 14:23:55
User: guziec
Functions: cut find sort tail
0
Up
Down
show 20 last modified files in current directory including subdirectories
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tail -1000 `ls -ltr /var/log/CF* |tail -1|awk '{print $9}'`|cut -d "," -f 17|sort|uniq -c |sort -k2
2012-11-30 16:30:41
User: raindylong
Functions: awk cut sort tail uniq
0
Up
Down
count & sort one field of the log files

count & sort one field of the log files , such as nginx/apache access log files .

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tail -F logfile
2012-11-15 10:12:20
User: dckt
Functions: tail
0
Up
Down
Show and update a log file
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tail -f /var/log/messages.log | while read line ; do echo $line | cut -d \ -f5- | sed s/\\[[0-9]*\\]// | espeak ; done
2012-10-27 23:00:53
User: asdfkajsdfh
Functions: cut echo read sed tail
0
Up
Down
Pipe system log to espeak
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tail +56 file > newfile
2012-10-26 03:04:12
User: basic612
Functions: file tail
0
Up
Down
delete first X lines of a file

'newfile' will have content of 'file' minus first 55 lines

to delete first line only do:

tail +2 file > newfile

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du -sm /home/* | sort -n | tail -10
2012-10-11 13:58:30
User: bertatum
Functions: du sort tail
Tags: disk usage du users
0
Up
Down
Find the 10 users that take up the most disk space

without reverse...

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end_w_nl() { [[ $(tail -c1 $1 | xxd -ps) == 0a ]] }
2012-09-18 20:11:29
User: xro
Functions: tail
Tags: tail xxd zsh
0
Up
Down
Function to check whether a regular file ends with a newline
end_w_nl filename

will check if the last byte of filename is a unix newline character. tail -c1 yields the file's last byte and xxd converts it to hex format.

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tail -n +2 foo.txt
2012-09-13 20:54:36
User: kaushalmehra
Functions: tail
Tags: unix
3
Up
Down
Deleting / Ignoring lines from the top of a file

Output lines starting at line 2.

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ls -rt | tail -n 1
2012-09-06 07:07:35
User: m0rf
Functions: ls tail
0
Up
Down
Find latest file in a directory
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lsmod | tail -n +2 | cut -d' ' -f1 | xargs modinfo | egrep '^file|^desc|^dep' | sed -e'/^dep/s/$/\n/g'
2012-09-03 17:59:49
User: vlaad
Functions: cut egrep lsmod modinfo sed tail xargs
Tags: xargs lsmod modinfo
0
Up
Down
Short Information about loaded kernel modules
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tail -f /proc/partitions
2012-08-17 05:57:12
User: huazhihao
Functions: tail
-4
Up
Down
detect partitions
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tail -f /etc/fstab
2012-08-16 09:58:54
User: huazhihao
Functions: tail
-11
Up
Down
list all available disks and disk partitions
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ifconfig | grep "inet" | tail -1 | awk '{print $2}'
2012-07-13 01:27:59
User: wotan
Functions: awk grep ifconfig tail
Tags: ifconfig
0
Up
Down
Get the IP address

more variety

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systemctl --failed | head -n -6 | tail -n -1
2012-07-11 22:31:46
User: corpix
Functions: head tail
0
Up
Down
Print failed units in systemd
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find . -name "fullcalib4.csv" -exec tail -n1 \{\} \; >>all.csv
2012-06-27 16:12:47
User: kaplan2539
Functions: find tail
0
Up
Down
collect fullcalib data
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amixer -c 0 set Master toggle | tail -1 | awk '{print $4}' | sed "s/[^0-9]//g" ; amixer -c 0 set Speaker toggle >/dev/null; amixer -c 0 set Front toggle >/dev/null
2012-06-26 21:18:07
User: dtsip
Functions: amixer awk sed set tail
0
Up
Down
Unmuting master channel, printing only percent value, while suppressing other outputs
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tail -f logfile | logtop
2012-06-24 19:18:30
User: Sizeof
Functions: tail
Tags: tail
-1
Up
Down
Realtime lines per second in a log file

logtop show number of lines per second, also classify them so you can show a "top" of every aspect of your logfile :

tail -f access.log | awk '{print $1; fflush();}' | logtop

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curl -s kernel.org | grep '<strong>' | head -3 | tail -1 | cut -d'>' -f3 | cut -d'<' -f1
2012-06-15 21:28:42
User: mdix
Functions: cut grep head tail
0
Up
Down
Get current stable kernel version string from kernel.org
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate