All commands (14,187)
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init states on solaris are numbered init 0 boot with prompt init 5 shutdown init 6 reboot
-11init 6 -
This appends a random number as a first filed of all lines in SOMEFILE then sorts by the first column and finally cuts of the random numbers.
4awk 'BEGIN{srand()}{print rand(),$0}' SOMEFILE | sort -n | cut -d ' ' -f2- -
Sometimes jittery data hides trends, performing a rolling average can give a clearer view.
3awk 'BEGIN{size=5} {mod=NR%size; if(NR<=size){count++}else{sum-=array[mod]};sum+=$1;array[mod]=$1;print sum/count}' file.dat -
attribution: Thanks to repellent on perlmonks.org source: http://www.perlmonks.org/?node_id=684459
13cat typescript | perl -pe 's/\e([^\[\]]|\[.*?[a-zA-Z]|\].*?\a)//g' | col -b > typescript-processed -
If you want to generate a cross-platform compatible zip file and ignore the Finder's hidden metadata directory
4zip -vr example.zip example/ -x "*.DS_Store" -
-4apropos keyword
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4egrep -o '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' file.txt
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12find <directory path> -mtime +365 -and -not -type d -delete
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3git grep -l "your grep string" | xargs gedit
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10find ./ -type f -exec sed -i 's/\t/ /g' {} \;
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Note that this assumes the application is an SVN checkout and so we have to throw away all the .svn files before making the substitution.
3grep -PL "\t" -r . | grep -v ".svn" | xargs sed -i 's/\t/ /g' -
2echo string | tr '[:lower:]' '[:upper:]'
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3sort -n <( for i in $(find . -maxdepth 1 -mindepth 1 -type d); do echo $(find $i | wc -l) ": $i"; done;)
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Create a temporary file that acts as swap space. In this example it's a 1GB file at the root of the file system. This additional capacity is added to the existing swap space. Show Sample Output
18sudo dd if=/dev/zero of=/swapfile bs=1024 count=1024000;sudo mkswap /swapfile; sudo swapon /swapfile -
There's been a few times I've needed to create random numbers. Although I've done so in PERL, I've found Ruby is actually faster. This script generates 20 random "10" digit number NOT A RANDOM NUMBER. Replace 20 (1..20) with the amount of random numbers you need generated Show Sample Output
3ruby -e "puts (1..20).map {rand(10 ** 10).to_s.rjust(10,'0')}" -
In the example, uid 0 is root. foo:foo are the user:group you want to make owner and group. '.' is the "current directory and below." -print0 and -0 indicate that filenames and directories "are terminated by a null character instead of by whitespace."
1find . -uid 0 -print0 | xargs -0 chown foo:foo -
a - archive m5 - compression level, 0= lowest compression...1...2...3...4...5= max compression -v5M split the output file in 5 megabytes archives, change to 700 for a CD, or 4200 for a DVD R recursive for directories, do not use it for files It's better to have the output of a compression already split than use the 'split' command after compression, would consume the double amount of disk space. Found at http://www.ubuntu-unleashed.com/2008/05/howto-create-split-rar-files-in-ubuntu.html
0rar a -m5 -v5M -R myarchive.rar /home/ -
1history -c
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-a for access time, -m for modification time, -c do not create any files, -t timestamp
1touch -amct [[CC]YY]MMDDhhmm[.ss] FILE -
ramdomize the execution of the command echo 'hello world!'
-8(($RANDOM%6)) || echo 'hello world!' -
0mysql -s -e "show processlist" |awk '{print $1}'
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It happened to me that I got a season of a tv-show which had all files under the same folder like /home/blah/tv_show/season1/file{1,2,3,4,5,...}.avi But I like to have them like this: /home/blah/tv_show/season1/e{1,2,3,4,5,...}/file{1,2,3,4,5,...}.avi So I can have both the srt and the avi on one folder without cluttering much. This command organizes everything assuming that the filename contains Exx where xx is the number of the episode. You may need to set:
IFS=$'\n'if your filenames have spaces.-1season=1; for file in $(ls) ; do dir=$(echo $file | sed 's/.*S0$season\(E[0-9]\{2\}\).*/\1/'); mkdir $dir ; mv $file $dir; done -
16type -all command
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exported files will get a .r23 extension (where 23 is the revision number)
2svn log fileName|cut -d" " -f 1|grep -e "^r[0-9]\{1,\}$"|awk {'sub(/^r/,"",$1);print "svn cat fileName@"$1" > /tmp/fileName.r"$1'}|sh -
change 20 by the number of sessions you want to know (20 it's fair enough) Show Sample Output
1last -n 20 - ‹ First < 489 490 491 492 493 > Last ›
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