All commands (9)

  • Calculate pi to an arbitrary number of decimal places


    2
    bc -l <<< "scale=1000; 4*a(1)"
    cryptology_codes · 2020-03-11 15:58:21 3
  • Backup with versioning


    0
    & 'C:\cwRsync_5.5.0_x86_Free\bin\rsync.exe' --force --ignore-errors --no-perms --chmod=ugo=rwX --checksum --delete --backup --backup-dir="_EVAC/$(Get-Date -Format "yyyy-MM-dd-HH-mm-ss")" --whole-file -a -v "//MyServer/MyFolder" "/cygdrive/c/Backup"
    pascalv · 2020-03-06 10:17:42 1
  • Create POSIX tar archive

    tar(1) and cpio(1) are not fully platform agnostic, although their file formats are specified in POSIX.1-2001. As such, GNU tar(1) might not be able to extract a BSD tar(1) archive, and ivce versa. pax(1) is defined in POSIX.1-2001. To extract an archive: pax -rf archive.tar


    0
    pax -wf archive.tar /path
    atoponce · 2020-03-06 13:56:46 1
  • convert raw camera image to jpeg

    raw image created by canon digital camera. Install using apt-get install ufraw


    0
    for i in *.CR2; do ufraw-batch $i --out-type=jpeg --output $i.jpg; done;
    shantanuo · 2020-03-22 03:08:23 1
  • List packages manually installed with process currently running

    Sometimes we install programs, we forget about them, and they stay there wasting RAM. This one-liner try to find them. Show Sample Output


    0
    ps -eo cmd | awk '{print $1}'| sort -u | grep "^/" | xargs dpkg -S 2>/dev/null | awk -F: '{print $1}' | sort -u | xargs apt-mark showmanual
    pabloab · 2020-03-26 06:16:45 0
  • Remove all cached images for icons related to your profile

    Run inside Command Prompt (cmd.exe) as admin. Note that you must close explorer.exe first, and even so some files will not be deleted, will say "Access is denied." To definitely delete them enter with another admin user or from other operating system and access the drive. Show Sample Output


    0
    DEL /F /S /Q /A %LocalAppData%\Microsoft\Windows\Explorer\thumbcache_*.db
    bugmenot · 2020-03-27 16:53:23 1
  • find all executable files across the entire tree

    I can think of using this command after compiling an downloaded source from anywhere as an easy way to find all executable products. We usually issue the find command (without arguments) to list the full paths of all directories and sub-directories and files in the entire current tree. Similar command is tree -aicfnF


    0
    find -executable -type f
    knoppix5 · 2020-03-29 11:46:18 1
  • List only empty directories and delete safely (=ask for each)

    Will delete empty directories and sub-directories (hideen too = whose names are starting with dot .). Used 'rm' command instead of 'rmdir' to give the possibility of asking for confirmation before deleting i.e. it is not wise do delete all empty directories in /etc folder. Replace dot in 'find .' with any for other starting directory instead of current. in 'rm -i -R' 'i' stands for ask before delete and 'R' for delete folder recursively or folder itself if it is empty


    0
    find . -type d -empty -exec rm -i -R {} \;
    knoppix5 · 2020-03-29 13:12:21 1
  • Monitor ETA using pv command

    You can get an approximate idea of how long your data export might take. Show Sample Output


    0
    mysqldump --login-path=mypath sbtest sbtest4 | pv --progress --size 200m -t -e -r -a > dump.sql
    shantanuo · 2020-03-30 09:15:16 1

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Install pip with Proxy
Installs pip packages defining a proxy

check open ports without netstat or lsof

silent/shh - shorthand to make commands really quiet
Sometimes I just want to run a command quietly but all that keyboard shifting makes my fingers hurt. This little function does the job eg.: $ if shh type less; then PAGER=less; fi

split source code to page with numbers

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Stop Flash from tracking everything you do.
Brute force way to block all LSO cookies on a Linux system with the non-free Flash browser plugin. Works just fine for my needs. Enjoy.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

File rotation without rename command
Rotates log files with "gz"-extension in a directory for 7 days and enumerates the number in file name. i.e.: logfile.1.gz > logfile.2.gz I needed this line due to the limitations on AIX Unix systems which do not ship with the rename command.

Set laptop display brightness
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

Burst a Single PDF Document into Single Pages and Report its Data to doc_data.txt
Require the pdftk package It ll split each page in your pdf file , into a new pdf file and report info on doc_data.txt

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