Commands tagged scanner (7)

  • Adjust the --resolution and --mode as required (if these options are available for your scanner). The size options (-x, -y, -imageheight, -imagewidth) are for US letter paper. For A4, I think the command would be: scanimage -p --resolution 250 --mode Gray -x 210 -y 297 | pnmtops -imageheight 11.7 -imagewidth 8.3 | ps2pdf - output.pdf


    3
    scanimage -p --resolution 250 --mode Gray -x 215.9 -y 279.4 | pnmtops -imageheight 11 -imagewidth 8.5 | ps2pdf - output.pdf
    dbh · 2013-04-12 18:18:42 0
  • Does a ping scan on the local subnet and returns the IPs that are up Show Sample Output


    0
    nmap -T4 -sn 192.168.1.0/24
    drewbled · 2012-06-19 17:07:24 0
  • use imagemagik convert


    2
    convert -compress jpeg *.jpg mydoc.pdf
    hute37 · 2011-05-01 13:37:09 0
  • Joins two pdf documents coming from a simplex document feed scanner. Needs pdftk >1.44 w/ shuffle.


    5
    pdftk A=odd.pdf B=even.pdf shuffle A1-end Bend-1S output duplex.pdf
    till · 2011-02-25 15:00:09 2
  • Very handy way to perform a host scan if you don't have nmap,ncat,nc ...or other tools installed locally. When executing a command on a /dev/tcp/$host/$port pseudo-device file, Bash opens a TCP connection to the associated socket and UDP connection when using /dev/udp/$host/$port.A simlpe way to get servers banner is to run this command "cat < /dev/tcp/localhost/25" , here you will get mail server's banner. NOTE: Bash, as packaged for Debian, does not support using the /dev/tcp and /dev/udp pseudo-device it's not enabled by default Because bash in Debian is compiled with ?disable-net-redirections. Show Sample Output


    4
    for p in {1..1023}; do(echo >/dev/tcp/localhost/$p) >/dev/null 2>&1 && echo "$p open"; done
    benyounes · 2010-04-26 18:09:22 1
  • Simple one-liner for scanning a range of hosts, you can also scan a range of ports with Netcat by ex.: nc -v -n -z -w 1 192.168.0.1 21-443 Useful when Nmap is not available:) Range declaration like X..X "for i in {21..29}" is only works with bash 3.0+ Show Sample Output


    9
    for i in {21..29}; do nc -v -n -z -w 1 192.168.0.$i 443; done
    rez0r · 2009-09-25 03:31:29 3
  • Xsane produces PDFs that are too large - particularly multipage PDFs. This command compresses them. If you do not use A4, remove the -sPAPERSIZE flag.


    3
    gs -q -sPAPERSIZE=a4 -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=test.pdf multipageproject.pdf
    iain · 2009-03-24 17:14:46 1

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands



Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: