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Commands using cat from sorted by
Terminal - Commands using cat - 417 results
date -d @$(echo $(($(date +%s)-$(cat /proc/uptime|cut -d. -f1))))
nocomments () { cat $1 | egrep -v '^[[:space:]]*#|^[[:space:]]*$|^[[:space:]]*;' | sed '/<!--.*-->/d' | sed '/<!--/,/-->/d'; }
2011-11-04 12:47:39
User: RuizTapiador
Functions: cat egrep sed
Tags: sed grep comment
1

Hide comments and empty lines, included XML comments,

cat /file/way/somelogforexample | grep -o "[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}" | sort -n | uniq -c | sort -n
cat /var/log/auth.log | grep -i "pam_unix(sshd:auth): authentication failure;" | cut -d' ' -f14,15 | cut -d= -f2 | sort | uniq
2011-10-25 04:58:09
User: JohnQUnknown
Functions: cat cut grep sort
0

This command shows a sorted list of the IP addresses from which there have been authentication errors via SSH (possible script kiddies trying to gain access to your server), it eliminates duplicates so it's easier to read, but you can remove the "uniq" command at the end, or even do a "uniq -c" to have a count of how many times each IP address shows in the log (the path to the log may vary from system to system)

cat myfile.mp3 | ssh user@remotemachine "mplayer -cache 8912 -"
2011-10-22 23:06:44
User: sidis405
Functions: cat ssh
0

Play local mp3 file on remote machine's speakers through ssh

cat /etc/passwd | grep "bash" | cut -d: -f1
cat .ssh/id_rsa.pub | ssh user@server "cat >>.ssh/authorized_keys2"
cat table-mv.txt | perl -pe 's{([^;]+);([^;]+)}{tbl$1/tbl$2}' | perl -pe 's{(\S+)}{perl -i -pe #s/$1/g# xxx.sql}' | tr "#" "\'" | bash
2011-10-05 15:55:34
User: hute37
Functions: cat perl tr
0

with a semicolon text file map, apply multiple replace to a single file

cat ~/.ssh/id_rsa.pub | ssh <REMOTE> "(cat > tmp.pubkey ; mkdir -p .ssh ; touch .ssh/authorized_keys ; sed -i.bak -e '/$(awk '{print $NF}' ~/.ssh/id_rsa.pub)/d' .ssh/authorized_keys; cat tmp.pubkey >> .ssh/authorized_keys; rm tmp.pubkey)"
2011-09-30 07:39:24
User: tamouse
Functions: cat ssh
Tags: ssh awk
4

This one is a bit more robust -- the remote machine may not have an .ssh directory, and it may not have an authorized_keys file, but if it does already, and you want to replace your ssh public key for some reason, this will work in that case as well, without duplicating the entry.

cat /dev/scd0 > ~/audio_image.iso
2011-09-24 15:29:27
User: eastwind
Functions: cat
-8

you should umount /dev/cdrom before using this cli

cat file.orig | ssh user1@host1 "ssh user2@host2 \"ssh user3@server3 'cat >file.dest'\""
2011-09-23 12:49:19
User: Cell
Functions: cat ssh
0

pub key in ./ssh/authorized_keys needed because ssh-ed ssh can't ask for the password.

cat file.txt | sendmail -F myname -f admin@mysite.com guest@guest.com
while :; do cat file.txt | nc -l 80; done
cat x
cat /proc/PID/environ | tr '\0' '\n'
cat aaaaaa 2>&-
cat -n file.txt
cat file.csv | perl -pe 'if($. == 1) {@h = split(/;/); $i = 1 ; map { $_ = $i; $i++ } @h; print join(" ;", @h) , "\n"} ; s/(^|;);/$1 ;/g' | column -ts\; | less -S
echo $(cat /usr/share/dict/words |grep -v "'"|shuf -n4)
2011-08-31 12:48:14
User: d1v3rdown
Functions: cat echo grep
Tags: cat echo grep shuf
0

Fast and excludes words with apostrophes. For ubuntu, you can use wamerican or wbritish dictionaries, installable through aptitude.

cat /etc/passwd | column -nts:
mkdir replaced;for i in *; do cat "$i"| sed 's/foo/bar/' > "replaced/$i"; done
2011-08-30 08:28:26
User: rubo77
Functions: cat mkdir sed
-5

if you want to replace "foo" with "bar" in all files in a folder, and put the resulting files into a new subfolder

cat dirtyfile.txt | awk '{gsub(/[[:punct:]]/,"")}1' | tr A-Z a-z | sed 's/[0-9]*//g' | sed -e 's/ //g' | strings | tr -cs '[:alpha:]' '\ ' | sed -e 's/ /\n/g' | tr A-Z a-z | sort -u > cleanfile.txt
2011-08-28 01:26:04
User: purehate
Functions: awk cat sed sort strings tr
0

Using large wordlists is cumbersome. Using password cracking programs with rules such as Hashcat or John the ripper is much more effective. In order to do this many times we need to "clean" a wordlist removing all numbers, special characters, spaces, whitespace and other garbage. This command will covert a entire wordlist to all lowercase with no garbage.

x=(*.001); cat "${x%.001}."* > "${x%.001}" #unsafe; does not check that all the parts are there, or that the file-sizes make sense!
2011-08-24 04:10:20
User: Jessehz
Functions: cat make
0

Join all sequentially named files in the directory.

Use this for files split by utilities like hjsplit and similar.

This command does not do/perform _any_ sanity checks before acting, except that it won't run unless there is a file that matches "*.001".

- The outfile should not already exist.

- There should be more than one file. (*.002 should exist as well as *.001)

- The file-count should match the number in the name of the last file in the series.

- None of the files should be empty.

- All files should be the same size, except for the last, which should usually be smaller, but never larger than the rest.

A safer altenative can be found here: http://pastebin.com/KSS0zU2F

cat /usr/share/dict/words | grep -P ^[a-z].* | grep -v "'s$" | grep -Pv ^.\{1,15\}$ | shuf -n4 | tr '\n' ' ' | sed 's/$/\n/'
2011-08-15 01:03:48
User: bugmenot
Functions: cat grep sed tr
Tags: tr xkcd shuf
-2

The first grep rejects capitalised words since the dict has proper nouns in it that you mightn't want to use. The second grep rejects words with ending in apostrophe s, and the third forces the words to be at least 15 characters long.

cat input.txt | sed 's/\\\033[^a-zA-Z]*.//g'