All commands (13,439)

  • Get all documents (doc,docx,xls,xlsx,pdf,ppt,pptx,...) linked in a webpage


    1
    curl https://www.domain.com/ | grep -Eo "(http|https)://[a-zA-Z0-9./?=_-]*.*(doc|docx|xls|xlsx|ppt|pptx|pdf)" | sort | uniq > list.txt | wget list.txt
    Repie · 2018-10-16 08:54:45 0
  • Dump man page as clean text

    Dumping man pages to text typically retains certain formatting such as foo^H^H^H___ for underscoring, and reverse-line feeds (not sure why). 'col -bx' removes these. Show Sample Output


    0
    man2txt() { man "$@" | col -bx ;}
    bartonski · 2018-10-14 01:38:04 0
  • Get a diff of two json arrays

    jq is amazing for manipulating json on the commandline, but the developers have some weird ideas about how to handle shell redirections. This command works around them. Further reading: https://github.com/stedolan/jq/issues/1110


    2
    diff <(jq . -M -S < old.json) <(jq . -M -S < new.json)
    malathion · 2018-10-11 20:59:48 0
  • Create and access directory at the same time

    The previous alternative dont work (the cd command was missing).


    2
    mkdir [[folder]] && cd $_
    mlinoba · 2018-10-11 16:40:53 0
  • Continuous random string of text


    0
    while true; do sleep .15; head /dev/urandom | tr -dc A-Za-z0-9; done
    allyman17 · 2018-10-10 18:57:34 0
  • Disable updates for installed Chrome plugins

    This will allow you to ensure you don't get nagged by updates and also protects you from watering hole attacks! Please be sure to make sure your plugins don't have any security issues! Backups are manifext.jason.bak credit @Jay https://chat.counterpoint.info


    0
    find / -iname "manifest.json" -exec sed 's/\"update_url\": \"http/\"update_url\": \"hxxp/g' -i.bak '{}' \;
    operat0r · 2018-10-09 19:50:31 0
  • Create and access directory at the same time

    Create and access directory


    0
    mkdir [folder-name] && $_
    ehmuidifici · 2018-10-09 18:48:16 2
  • Toggle the Touchpad on or off


    0
    tp=$(synclient -l | grep TouchpadOff | awk '{ print $3 }') && tp=$((tp==0)) && synclient TouchpadOff=$tp
    jny · 2018-10-09 07:42:32 0
  • get all Google ipv4 subnets for a iptables firewall for example

    a bit shorter, parenthesis not needed but added for clarity Show Sample Output


    1
    nslookup -q=TXT _netblocks.google.com | grep -Eo 'ip4:([0-9\.\/]+)' | cut -d: -f2
    jseppe · 2018-10-05 18:19:15 2
  • Create a role on the Chef server with a description


    0
    knife role create role-name --description "this is a role that does cool stuff"
    niko47 · 2018-10-05 16:00:41 0
  • get all Amazon cloud (amazonws etc) ipv6 subnets


    1
    curl -s https://ip-ranges.amazonaws.com/ip-ranges.json | awk -F'"' '/ipv6_prefix/ {print $4}'
    emphazer · 2018-10-05 13:01:03 0
  • get all Amazon cloud (amazonws etc) ipv4 subnets


    1
    curl -s https://ip-ranges.amazonaws.com/ip-ranges.json | awk -F'"' '/ip_prefix/ {print $4}'
    emphazer · 2018-10-05 12:59:33 0
  • get all Google ipv4 subnets for a iptables firewall for example


    2
    nslookup -q=TXT _netblocks.google.com | grep -Po '\b([0-1]?\d{1,2}|2[0-4]\d|25[0-5])(\.([0-1]?\d{1,2}|2[0-4]\d|25[0-5])){3}(/\d{1,2})\b'
    emphazer · 2018-10-05 12:50:48 0
  • Use jq to validate and pretty-print json output

    The `jq` tool can also be used do validate json files and pretty print output: ` jq < file.json` Available on several platforms, including newer debian-based systems via `#sudo apt install jq`, mac via `brew install jq`, and from source https://stedolan.github.io/jq/download/ This alternative to the original avoids the useless use of cat Show Sample Output


    0
    jq < file.json
    malathion · 2018-10-03 18:46:46 0
  • Convert hex data to binary with a bash function (requires bash v4+ for the @^^ lowercase hex demangling)

    Use this function with bash version 4+ to convert arbitrary hexadecimal sequences to binary. If you don't have bash 4+ then modify the lowercase to uppercase demangling statement s=${@^^} to set s equal to the uppercase hex input or the bc command throws an input parser error. Show Sample Output


    0
    hex2bin () { s=${@^^}; for i in $(seq 0 1 $((${#s}-1))); do printf "%04s" `printf "ibase=16; obase=2; ${s:$i:1};\n" | bc` ; done; printf "\n"; }
    RiskNerd · 2018-10-02 22:02:33 0
  • use jq to validate and pretty-print json output

    the `jq` tool can also be used do validate json files and pretty print output `cat file.json | jq` available on several platforms, including newer debian-based systems via `#sudo apt install jq`, mac via `brew install jq`, and from source https://stedolan.github.io/jq/download/ Show Sample Output


    2
    cat file.json | jq
    daemeon · 2018-10-01 23:05:27 0
  • Close specify detached screen

    -X Send the specified command to a running screen session. -S Option to specify the screen session if you have several screen sessions running. screen -ls for listing current screens and its sessionname


    1
    screen -X -S [sessionname] quit
    FanMix · 2018-10-01 14:30:01 0
  • Kill any lingering ssh processes

    Also ignoring "sshd" server is necessary since you should not kill ssh server processes.


    1
    ps aux | grep ssh | grep -v grep | grep -v sshd | awk {'print $2'} | xargs -r kill -9
    user2390 · 2018-10-01 04:49:09 2
  • create ICO file with more than one image

    requires imagemagick. -background transparent is of course optional. Show Sample Output


    1
    convert -background transparent input.png -define icon:auto-resize=16,32,48,64,128 favicon.ico
    emphazer · 2018-09-27 13:12:03 0
  • loop files with SPACES on their names

    use '*' instead of 'ls'


    -2
    for f in *;do echo $f;done
    famaral · 2018-09-21 14:27:23 1
  • Nginx - print all optional modules before compilation

    wget http://nginx.org/download/nginx-1.15.3.tar.gz && tar -xzf 1.15.3.tar.gz && cd nginx-1.15.3 Show Sample Output


    1
    ./configure --help | grep -P "^ +--with-(?!(poll|select))[^=]+(_module( |$)| (module|support)$)" | sed -r 's/((dis|en)able|build) /# /'
    emphazer · 2018-09-14 12:54:06 0
  • urlencoding with one pure BASH builtin

    opposite of https://www.commandlinefu.com/commands/view/10014/urldecoding-with-one-pure-bash-builtin ;-) Show Sample Output


    0
    function URLEncode { local dataLength="${#1}"; local index; for ((index = 0;index < dataLength;index++)); do local char="${1:index:1}"; case $char in [a-zA-Z0-9.~_-]) printf "$char"; ;; *) printf "%%%02X" "'$char"; ;; esac; done; }
    emphazer · 2018-09-14 12:08:10 0
  • Unlock VMs in Proxmox

    Unlock your VMS to avoid problems after some failed tasks ended. Show Sample Output


    0
    for i in $(qm list | awk '{ print $1 }' | grep -v VMID); do echo "Unlocking:" $i; qm unlock $i; echo "Unlocked"; done
    arkalira · 2018-09-13 08:35:12 0
  • Print the 16 most recent RPM packages installed in newest to oldest order


    1
    rpm -qa --last | head -n 16
    sparsile · 2018-09-13 02:55:51 0
  • Print the 16 most recent RPM packages installed in newest to oldest order

    Display a list of the 16 most recently installed RPM packages with newest first. Show Sample Output


    0
    rpm -qa --queryformat '%{INSTALLTIME} %{name}-%{version}-%{release}\n' | sort -k 1,1 -rn | nl | head -16 | awk '{printf("%3d %s %s\n", $1,strftime("%c",$2),$3)}'
    mpb · 2018-09-12 17:47:26 1
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GZip all files in a directory separately

Prefix command output with duration for each line
Prefixes each output line with time between it and the previous one.

Capture video of a linux desktop

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Create a listing of all possible permissions and their octal representation.

list files by testing the ownership
Alternative to mnikhil's ls/awk solution

Press a key automatically
Press a key automatically via xvkbd.

list files recursively by size

Print the contents of $VARIABLE, six words at a time
Print out the contents of $VARIABLE, six words per line, ignoring any single or double quotes in the text. Useful when $VARIABLE contains a sentence that changes periodically, and may or may not contain quoted text.

du with colored bar graph
i'm using gawk, you may get varying mileage with other varieties. You might want to change the / after du to say, /home/ or /var or something, otherwise this command might take quite some time to complete. Sorry it's so obsfucated, I had to turn a script into a one-liner under 255 characters for commandlinefu. Note: the bar ratio is relative, so the highest ratio of the total disk, "anchors" the rest of the graph. EDIT: the math was slightly wrong, fixed it. Also, made it compliant with older versions of df.

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