All commands (14,187)
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dpigs is in the package debian-goodies (debian/ubuntu)
11dpigs -
Calculating series with awk only, no need for seq: add numbers from 1 to 100 Variations: 1+3+...+(2n-1) = n^2
awk 'BEGIN {for(i=1;i<=19;i+=2)sum+=i}; END {print sum}' /dev/null # displays 1001/2 + 1/4 + ... = 1awk 'BEGIN {for(i=1;i<=10;i++)sum+=1/(2**i)}; END {print sum}' /dev/null # displays 0.999023Show Sample Output0awk 'BEGIN {for(i=1;i<=100;i++)sum+=i}; END {print sum}' /dev/null -
Get your server's fingerprints to give to users to verify when they ssh in. Publickey locations may vary by distro. Fingerprints should be provided out-of-band. Show Sample Output
4ssh-keygen -l -f /etc/ssh/ssh_host_rsa_key.pub && ssh-keygen -l -f /etc/ssh/ssh_host_dsa_key.pub -
10curl http://www.whatismyip.org/
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conversely, you can type
flip -mto convert the file back to MS line endings.0flip -u $FILE -
Remove CR LF (CRLF) from a text file. use man:tr to get more info about removing other characters from a file. and even character to character replacements.
3tr -d '\r\n' < input_file.txt > output_file.txt -
8curl -s checkip.dyndns.org | grep -Eo '[0-9\.]+'
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-1getdji (){local url sedcmd;url='http://finance.yahoo.com/q?d=t&s=^DJI';sedcmd='/(DJI:.*)/,/Day.*/!d;s/^ *//g;';sedcmd="$sedcmd/Change:/s/Down / -/;/Change:/s/Up / +/;";sedcmd="$sedcmd/Open:/s//& /";lynx -dump "$url" | sed "$sedcmd"; }
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-2w3m http://amit-agarwal.co.in/mystuff/getip_txt.php will return the ip in text format.
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See external ip with w3m, simple and fast. On a web site from Chile (spanish).
-2w3m miip.cl | grep ip -
-2lynx --dump "http://checkip.dyndns.org"
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-3sudo mount -t vfat /dev/sdb1 /mnt/sdb1
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You'll run into trouble if you have files w/ missing newlines at the end. I tried to use
PAGER='sed \$q' git blameand evenPAGER='sed \$q' git -p blameto force a newline at the end, but as soon as the output is redirected, git seems to ignore the pager.-1git ls-files | while read i; do git blame $i | sed -e 's/^[^(]*(//' -e 's/^\([^[:digit:]]*\)[[:space:]]\+[[:digit:]].*/\1/'; done | sort | uniq -ic | sort -nr -
That's what the sed command should've been, sorry.
2sed -n '/test/{/error\|critical\|warning/d;p}' somefile -
25dpkg-query -Wf '${Installed-Size}\t${Package}\n' | sort -n
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Figures out total line contribution per author for an entire GIT repo. Includes binary files, which kind of mess up the true count. If crashes or takes too long, mess with the ls-file option at the start: git ls-files -x "*pdf" -x "*psd" -x "*tif" to remove really random binary files git ls-files "*.py" "*.html" "*.css" to only include specific file types Based off my original SVN version: http://www.commandlinefu.com/commands/view/2787/prints-total-line-count-contribution-per-user-for-an-svn-repository Show Sample Output
4git ls-files | xargs -n1 -d'\n' -i git-blame {} | perl -n -e '/\s\((.*?)\s[0-9]{4}/ && print "$1\n"' | sort -f | uniq -c -w3 | sort -r -
Forward connections to $HOSTNAME:8080 out to $HOST:80
-2ssh -g -L 8080:localhost:80 root@$HOST -
Nethogs is a useful tool for monitor bandwidth consumption by pid. Tested on Debian an CentOs
23nethogs -p eth0 -
Convert Windows/DOS Text Files to Uni Show Sample Output
-26Convert Windows/DOS Text Files to Uni -
7sed -n /start_pattern/,/stop_pattern/p file.txt
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0declare -F | sed 's/^declare -f //'
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If you wanted to do all in one command, you could go w/ sed instead
3sed '/test/{/error\|critical\|warning/d}' somefile -
You can use -e to pass multiple patterns.
2grep test somefile | grep -v -e error -e critical -e warning -
Produces secure passwords that satisfy most rules for secure passwords and can be customized for correct output as needed. See "man pwgen" for details. Show Sample Output
8pwgen --alt-phonics --capitalize 9 10 -
make password randomly, default 8 chars, using bash3.X only, no external program.
1genpass(){local i x y z h;h=${1:-8};x=({a..z} {A..Z} {0..9});for ((i=0;i<$h;i++));do y=${x[$((RANDOM%${#x[@]}))]};z=$z$y;done;echo $z ;} - ‹ First < 433 434 435 436 437 > Last ›
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