Commands using head (314)
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0SEED=$(head -1 /dev/urandom|od -N 1);for i in {1..10};do tmp=$(mkpasswd ${RANDOM});pass=${tmp:2:6};echo Pass $pass Crypt: $(mkpasswd $pass);done
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0systemctl --failed | head -n -6 | tail -n -1
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This requires a version of GNU find that supports the -exec {} + action, but it seems more straightforward than the versions already posted. Show Sample Output
0find . -type f -exec ls -shS {} + | head -10 -
0vlc $(for f in /proc/$(pgrep -f libflashplayer.so |head -n 1)/fd/*; do ;if $(file ${f} |grep -q "broken symbolic link to \`/tmp/FlashXX"); then echo ${f};fi;done)
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0wget --no-use-server-timestamps $(curl $(curl http://wallbase.cc/random/23/eqeq/1920x1080/0/100/20 | grep 'wallpaper/' | awk -F'"' '{print $2}' | head -n1) | grep -A4 bigwall | grep img | awk -F'"' '{print $2}'); feh --bg-center $(ls -1t | head -n1)
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0find . -type f | xargs -I% bash -c 'echo -e "\033[31m%\033[0m" && [[ ! `file %` =~ .*binary.* ]] && head "%"'
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the -h option of du and sort (on appropriate distrib) makes output "Human" readable and still sorted by "reversed size" (sort -rh) Show Sample Output
0du -sh /home/*|sort -rh|head -n 10 -
0ps axo %mem,pid,euser,cmd | sort -nr | head -n 10
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0head -c7 /dev/urandom|base64|tr -d '='
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0tr -dc '[:graph:]' </dev/urandom | head -c30; echo
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Above command will generate a random number between 1 to 10. Show Sample Output
0seq 10| shuf | head -1 -
Lists the size in human readable form and lists the top 25 biggest directories/files
0du . | sort -nr | awk '{split("KB MB GB TB", arr); idx=1; while ( $1 > 1024 ) { $1/=1024; idx++} printf "%10.2f",$1; print " " arr[idx] "\t" $2}' | head -25 -
Place in .bash_profile Show Sample Output
048 function gbl() { git for-each-ref --sort=-committerdate --format='%(committerdate) %(authorname) %(refname)' refs/remotes/origin/|grep -e ".$@"|head -n 10; } -
0finger `whoami` | awk -F: '{ print $3 }' | head -n1 | sed 's/^ //'
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0awk '/Dec\/2012/ {print $1,$8}' logfile | grep -ivE '(.gif|.jpg|.png|favicon|.css|.js|robots.txt|wp-l|wp-term)' | sort | uniq -c | sort -rn | head -n 20
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cut log from row 100 to row 150.
0cat -n install | head -n 150 | tac | head -n 50 | tac -
cut log from line 50 to line 88
0cat -n install.log | head -88 | tac | head -n $(( 88 - 50 )) | tac -
top 10 of access log
0awk '{ print $9 }' access.log | sort | uniq -c | sort -nr | head -n 10 -
perhaps you should use CMD[$2] instead of CMD[$4] Show Sample Output
0history | awk '{CMD[$4]++;count++;} END { for (a in CMD )print CMD[a] " " CMD[a]/count*100 "% " a }' | sort -nr | nl | column -t | head -n 10 -
0find /logs -ls -xdev | sort -nrk 7 | head -10
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bash-3.2$ find /logs -ls -xdev | sort -nrk 7 | head -10 1761905 205380 -rwxrwxr-x 1 wsadmin logadmin 210095353 Jul 22 01:33 /logs/intlpymt/Trace.log 652689 187360 -rwxrwxr-x 1 wsadmin logadmin 191663182 Jul 21 23:00 /logs/websphere/wsfpp1lppwa1213omsecureServer/SystemOut_13.07.21_23.00.12.log 2380449 186536 -rwxrwxr-x 1 wsadmin logadmin 190819939 Jul 16 14:03 /logs/omset/traceIntl.log.201307161403.lppwa1213.gz 2119524 183888 -rwxrwxr-x 1 wsadmin logadmin 188110111 Jul 22 01:33 /logs/intlpymt/intlpymtria/Trace.log 652816 160332 -rwxrwxr-x 1 wsadmin logadmin 164011871 Aug 14 2012 /logs/websphere/wsfpp1lppwa1213omsecureServer/SystemOut.log_08142012.gzip 653312 128916 -rwxrwxr-x 1 wsadmin logadmin 131873943 Jul 18 10:49 /logs/websphere/heapdump.20130718.104150.27592.0006.phd.201307181406.lppwa1213.gz 653320 128916 -rwxrwxr-x 1 wsadmin logadmin 131873735 Jul 18 10:40 /logs/websphere/heapdump.20130718.104012.27592.0002.phd.201307181406.lppwa1213.gz 653309 128912 -rwxrwxr-x 1 wsadmin logadmin 131867602 Jul 18 10:46 /logs/websphere/heapdump.20130718.104008.27592.0001.phd.201307181405.lppwa1213.gz 653323 128872 -rwxrwxr-x 1 wsadmin logadmin 131828157 Jul 18 10:41 /logs/websphere/heapdump.20130718.104109.27592.0004.phd.201307181407.lppwa1213.gz 652783 120288 -rwxrwxr-x 1 wsadmin logadmin 123047750 Aug 13 2012 /logs/websphere/wsfpp1lppwa1213omsecureServer/SystemOut.log_0813.2012.gzip bash-3.2$ Show Sample Output
0find /logs -ls -xdev | sort -nrk 7 | head -10 -
Pipes the header row of ps to STDERR, then greps for the command on the output of ps, removing the grep entry before that. Show Sample Output
0psgrep() { ps aux | tee >(head -1>&2) | grep -v " grep $@" | grep "$@" -i --color=auto; } -
0host example.com | head -1 | awk '{print $4}'
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Took one of the samples, added capitalization and removes in between spaces. The final "echo" is just for readability. Cheers Show Sample Output
0shuf /usr/share/dict/words |grep "^[^']\{3,6\}$" |head -n4 | sed -e "s/\b\(.\)/\u\1/g" | tr -d '\n'; echo -
Use less random number resources and less commands
0head -c 24 /dev/urandom | base64 - ‹ First < 6 7 8 9 10 > Last ›
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