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Commands tagged cat

Commands tagged cat from sorted by
Terminal - Commands tagged cat - 38 results
cat /dev/hda > ~/hda.iso
2009-11-09 15:44:53
User: mvrilo
Functions: cat
Tags: cat hard disk harddisk
-9
Up
Down
Make an iso file out of your entire hard drive
Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
random -f <file>
2009-09-24 19:15:58
User: haplo
Tags: Text Processing Os X cat sort perl sorting text
3
Up
Down
Randomize lines (opposite of | sort)

random(6) - random lines from a file or random numbers

Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat ~/SortedFile.txt | perl -wnl -e '@f=<>; END{ foreach $i (reverse 0 .. $#f) { $r=int rand ($i+1); @f[$i, $r]=@f[$r,$i] unless ($i==$r); } chomp @f; foreach $line (@f){ print $line; }}'
2009-09-24 15:42:43
User: drewk
Functions: cat perl
Tags: Text Processing Os X cat sort perl sorting text
0
Up
Down
Randomize lines (opposite of | sort)

The sort utility is well used, but sometimes you want a little chaos. This will randomize the lines of a text file.

BTW, on OS X there is no

| sort -R

option! There is also no

| shuf

These are only in the newer GNU core...

This is also faster than the alternate of:

| awk 'BEGIN { srand() } { print rand() "\t" $0 }' | sort -n | cut -f2-
Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat filename | uuencode filename | mail -s "Email subject" user@example.com
2009-09-21 04:13:50
User: amaymon
Functions: cat mail uuencode
Tags: cat mail
0
Up
Down
Send a local file via email

uuencode the file to appear as an attachment

Comments (6) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat filename | mail -s "Email subject" user@example.com
2009-09-20 01:38:23
User: topher1kenobe
Functions: cat mail
Tags: cat mail
2
Up
Down
Send a local file via email

This just reads in a local file and sends it via email. Works with text or binary. *Requires* local mail server.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat filename | grep .
2009-08-09 01:00:59
User: fraktil
Functions: cat grep
Tags: cat Linux grep
2
Up
Down
Remove newlines from output

Pipe any output to "grep ." and blank lines will not be printed.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat /proc/net/ip_conntrack | grep ESTABLISHED | grep -c -v ^#
2009-07-29 20:21:25
User: flamarion
Functions: cat grep
Tags: cat grep shell
3
Up
Down
Count all conections estabilished on gateway
Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
infile=$1 for i in $(cat $infile) do echo $i | tr "," "\n" | sort -n | tr "\n" "," | sed "s/,$//" echo done
2009-07-12 21:23:37
User: iframe
Functions: cat echo sed sort tr
Tags: cat bash sort sed tr
0
Up
Down
Sorting by rows

Save the script as: sort_file

Usage: sort_file < sort_me.csv > out_file.csv

This script was originally posted by Admiral Beotch in LinuxQuestions.org on the Linux-Software forum.

I modified this script to make it more portable.

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
iconv -f437 -tutf8 asciiart.nfo
2009-07-11 23:50:05
User: speaker
Functions: iconv
Tags: cat bash ascii iconv nfo
8
Up
Down
Outputs files with ascii art in the intended form.

Files containing ascii art (e.g. with .nfo extension) are typically not correctly reproduced at the command line when using cat. With iconv one can easily write a wrapper to solve this:

#!/bin/bash

if [ -z "$@" ]; then echo "Usage: $(basename $0) file [file] ..."

else iconv -f437 -tutf8 "$@"; fi

exit 0
Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat -v -t -e
2009-03-24 19:29:03
User: alperyilmaz
Functions: cat
Tags: cat
4
Up
Down
View non-printing characters with cat

Useful to detect number of tabs in an empty line, DOS newline (carriage return + newline).

A tool that can help you understand why your parsing is not working.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat schema.sql data.sql test_data.sql | mysql -u user --password=pass dbname
2009-03-24 08:39:40
User: tristan_ph
Functions: cat
Tags: mysql cat
-1
Up
Down
Load multiple sql script in mysql

Be aware of using the --password argument as it will appear your password in plain text on the screen. You may use -p argument instead, it will prompt you to enter you password in hidden mode.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
sudo cat /proc/kcore | strings | awk 'length > 20' | less
2009-03-09 02:19:47
User: nesquick
Functions: awk cat strings sudo
Tags: cat ram strings
15
Up
Down
Browse system RAM in a human readable form

This command lets you see and scroll through all of the strings that are stored in the RAM at any given time. Press space bar to scroll through to see more pages (or use the arrow keys etc).

Sometimes if you don't save that file that you were working on or want to get back something you closed it can be found floating around in here!

The awk command only shows lines that are longer than 20 characters (to avoid seeing lots of junk that probably isn't "human readable").

If you want to dump the whole thing to a file replace the final '| less' with '> memorydump'. This is great for searching through many times (and with the added bonus that it doesn't overwrite any memory...).

Here's a neat example to show up conversations that were had in pidgin (will probably work after it has been closed)...

sudo cat /proc/kcore | strings | grep '([0-9]\{2\}:[0-9]\{2\}:[0-9]\{2\})'

(depending on sudo settings it might be best to run

sudo su

first to get to a # prompt)

Comments (5) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat /dev/tty > FILE
2009-02-25 01:43:47
User: Jo
Functions: cat
Tags: cat ssh copy paste
1
Up
Down
Type strait into a file from the terminal.

Takes input from the connected terminal and dumps it to the specified file. Stop writing and close file with control + D or the end of line character. Useful for copying+pasting large blobs of text over SSH to a new machine.

Show sample output | Comments (5) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate