Commands using sort (800)
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This doesn't require any non-standard programs.
0find . -printf "%s %p\n" | sort -n -
0ls -l| sort +4n|tail -1| awk '{print $NF}'
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Sometimes you want to see all of the systcls for a given $thing. I happened to need to easily look at all of the vm sysctls between two boxes and compare them. This is what I came up with. Show Sample Output
0find /proc/sys/vm -maxdepth 1 -type f | while read i ; do printf "%-35s\t%s\n" "$i" "$(<$i)" ; done | sort -t/ -k4 -
Shows sorted by query time, the headers of mysqlbinlog entries. Then is easy to locate the heavier events on the raw log dump Show Sample Output
0mysqlbinlog <logfiles> | grep exec | grep end_log_pos | grep -v exec_time=0 | sed 's/^\(.*exec_time=\([0-9]\+\).*\)/\2 - \1 /' | sort -n -
Watch out if you have several USB drives plugged in: it scans the whole /media/ folder !!! You can replace /media/ by the path of a specific USB drive (something like /media/F77A-530B/) I use a sound recorder and I want to plug the recorder and grab the most recent sound. That's what this command does. Use mv instead of cp to move instead of copy. Change *.wav to the required file type.
0cp $(find /media/ -type f -name "*.wav" -printf "%T@ %h/%f\n" | sort | tail -1 | awk '{ print $2 }') . -
This will list all installed packages on a RedHat/CentOS based system, sort them alphabetically, Parse off the version numbers, and delete any duplicate entries. This is good if you need to build out a mirrored system or rebuild a failing system. Show Sample Output
0rpm -qa | sort | sed -n -e "s/\-[0-9].[0-9]*.*//p" | uniq -
M is size in megabytes, man expac to see other sizes %m is install size %k is download size
0expac -S -H M "%m %n"|sort -n -
0du -hs * | sort -h
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here's a version which works on OS X.
0find . -type f -exec stat -f '%m %N' {} \; | sort -n -
"nl -ba" numbers all lines in the file (including empty lines), "sort -nr" sorts the lines in descending order, and the "cut" command finally removes the line numbers again.
0nl -ba FILE | sort -nr | cut -f2- -
cut -f1,2 - IP range 16 cut -f1,2,3 - IP range 24 cut -f1,2,3,4 - IP range 24 Show Sample Output
0netstat -tn | grep :80 | awk '{print $5}'| grep -v ':80' | cut -f1 -d: |cut -f1,2,3 -d. | sort | uniq -c| sort -n -
Sort using kth column using : delimiter
0sort -t: -k 2 names.txt -
ls -al gives all files, sort +4n sorts by 5th field numerically
0ls -al | sort +4n -
Uniq command is mostly used in combination with sort command, as uniq removes duplicates only from a sorted file. i.e In order for uniq to work, all the duplicate entries should be in the adjacent lines. Show Sample Output
0sort namesd.txt | uniq -
The following displays only the entries that are duplicates. Show Sample Output
0sort namesd.txt | uniq ?cd -
0cat ~/.bash_history | perl -lane 'if($F[0] eq "sudo"){$hash{$F[1]}++}else{$hash{$F[0]}++};$all++;END {@top = map {[$_, $hash{$_}]} sort {$hash{$b}<=>$hash{$a}} keys %hash;printf("%10s%10d%10.2f%%\n", $_->[0],$_->[1],$_->[1]/$all*100) for @top[0..9]}'
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0git shortlog -s | sort -rn | head
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Get a list of all the unique hostnames from the apache configuration files. Handy to see what sites are running on a server. When i saw the command i had some ideas to make it shorter. Here is my version.
0egrep 'ServerAlias|ServerName' /etc/apache2/sites-enabled/*.conf | awk '{printf "%s\t%s\n",$2,$3}' | sed 's/www.//' | sort | uniq -
"-exec" ftw.
0find . -type f -exec du -sh {} + | sort -hr | head -
Get link to external sites of a url Show Sample Output
0curl url | egrep -o '(http|https)://[a-z0-9]*\.[a-z0-9]*\.[a-z0-9]*'|sort |uniq -
The command will make it easy to determine free IP ranges in a crowded sub-net. Show Sample Output
0SUBNET="192.168.41" ; diff -y <(nmap -sP -n ${SUBNET}.0/24 | grep ${SUBNET}. | awk '{print $5}' | sort -t"." -k4 -n) <(for i in $(seq 1 254); do echo ${SUBNET}.$i; done) -
This command will find the highest context switches on a server and give you the process listing. Show Sample Output
0grep -H voluntary_ctxt /proc/*/status |gawk '{ split($1,proc,"/"); if ( $2 > 10000000 ) { printf $2 " - Process : "; system("ps h -o cmd -p "proc[3]) } }' | sort -nk1,1 | sed 's/^/Context Switches: /g' -
This probably only works without modifications in RHEL/CentOS/Fedora. Show Sample Output
0sed -n -e "/^\[/h; /priority *=/{ G; s/\n/ /; s/ity=/ity = /; p }" /etc/yum.repos.d/*.repo | sort -k3n -
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 -
Searches for *.cpp and *.h in directory structure, counts the number of lines for each matching file and adds the counts together. Show Sample Output
0find . \( -iname '*.cpp' -o -iname '*.h' \) -exec wc -l {} \; | sort -n | cut --delimiter=. -f 1 | awk '{s+=$1} END {print s}' - ‹ First < 19 20 21 22 23 > Last ›
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