Commands by Calcutta

Commands by Calcutta (89)

sorted by

Reinstall a Synology NAS without loosing any data from commandline.

Seen many questions how-to reinstall synology nas dsm without loosing data, here you go. Wait for a few min and then head over to http://nasip and setup your fresh installed nas. Show Sample Output
This is sample output - yours may be different.
```
Success.
Rebooting.
```
1

/usr/syno/sbin/./synodsdefault --reinstall

Calcutta · 2018-11-12 01:31:11 295
Factory reset your android device via commandline.
This is sample output - yours may be different.
1

am broadcast -a android.intent.action.MASTER_CLEAR

Calcutta · 2018-11-11 18:01:10 723
Find all file extension in current dir.
This is sample output - yours may be different.
1

find . -type f | perl -ne 'print $1 if m/\.([^.\/]+)$/' | sort -u

Calcutta · 2018-11-11 01:09:42 234
Generate a sequence of numbers.
This is sample output - yours may be different.
1

for ((i=1; i<=99; ++i)); do echo $i; done

Calcutta · 2018-11-11 01:00:56 235
Test your bash skills.
This is sample output - yours may be different.
1

ssh bandit0@bandit.labs.overthewire.org -p 2220

Calcutta · 2018-11-11 00:55:33 357
The proper way to read kernel messages in realtime.
This is sample output - yours may be different.
4

dmesg -wx

Calcutta · 2018-11-11 00:47:07 216
Monitor cpu in realtime.
This is sample output - yours may be different.
2

watch grep \"cpu MHz\" /proc/cpuinfo

Calcutta · 2018-11-11 00:45:28 213
Recall “N”th command from your BASH history without executing it.
This is sample output - yours may be different.
1

!12:p

Calcutta · 2018-11-11 00:44:51 249
Download all .key files from your android device to your pc.
This is sample output - yours may be different.
1

for i in `adb shell "su -c find /data /system -name '*.key'"`; do mkdir -p ".`dirname $i`";adb shell "su -c cat $i" > ".$i";done

Calcutta · 2018-11-11 00:36:14 261
Download all default installed apk files from your android.
This is sample output - yours may be different.
1

for i in $(adb shell pm list packages | awk -F':' '{print $2}'); do adb pull "$(adb shell pm path $i | awk -F':' '{print $2}')"; mv *.apk $i.apk 2&> /dev/null ;done

Calcutta · 2018-11-11 00:32:41 205

The Chromium OS rootfs is mounted read-only. In developer mode you can disable the rootfs verification, enabling it to be modified.

Show Sample Output

for x in 2 4; do /usr/share/vboot/bin/make_dev_ssd.sh --remove_rootfs_verification --partitions $x; done

Calcutta · 2018-11-07 21:15:40 24

Restart openssh-server on your Synology NAS from commandline.

The correct way to restart openssh-server on your synology nas. Show Sample Output
This is sample output - yours may be different.
```
Restarting ssh.
```
3

synoservicectl --restart sshd

Calcutta · 2018-11-07 21:00:30 189
List status of your git repos and let us know if there is any new files to commit.

Source: http://www.bashoneliners.com/oneliners/oneliner/225/ Show Sample Output
This is sample output - yours may be different.
```
Repo ---->  /var/git/router/TG799VAC-XTREME-17.2-MINT/
On branch master
Your branch is up to date with 'origin/master'.

Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

        modified:   README.md

Changes not staged for commit:
  (use "git add/rm <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

        deleted:    test.sh
```
1

gitdir="/var/git";find $gitdir -name ".git" 2> /dev/null | sed 's/\/.git/\//g' | awk '{print "\033[1;32m\nRepo ----> \033[0m " $1; system("git --git-dir="$1".git --work-tree="$1" status")}'

Calcutta · 2018-11-07 20:51:51 263
Clone all repos from a user with lynx

https://wuseman.github.io/wcloner/
This is sample output - yours may be different.
2

lynx -dump -nonumbers https://github.com/USER?tab=repositories|grep '/USER/'|cut -d'/' -f1,2,3,4,5|uniq|xargs -L1 git clone

Calcutta · 2018-09-01 06:03:23 75
‹ First < 2 3 4

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

Check These Out

List all available commands (bash, ksh93)

Most used command

Get current Xorg resolution via xrandr

Not sure if it works the same on any shell.

List empty any directories

Terminal redirection

can display the commands and their output to another user who is connected to another terminal, by example pts/3

Identify long lines in a file

This command displays a list of lines that are longer than 72 characters. I use this command to identify those lines in my scripts and cut them short the way I like it.

get the top 10 longest filenames

Print a cron formatted time for 2 minutes in the future (for crontab testing)

Another function to stick into your .bashrc This spits out the time two minutes in the future, but already formatted for pasting into your crontab file for testing without any thought required on your part. Frequently things don't work the way you expect inside a crontab job, and you probably want to find out now that your $PATH is completely different inside of cron or other global variables aren't defined. So this will generate a date you can use for testing now, and then later you can change it to run at 5:37 am on a Sunday evening.

Delete all empty lines from a file with vim

If you need to delete lines that may contain space characters (such as tabs or spaces) as well as empty ones, try: $:v/\S/d Just an alternative.

Remotely sniff traffic and pass to snort

I have a small embedded linux device that I wanted to use for sniffing my external network, but I didn't want to recompile/cross-compile snort for the embedded platform. So I used tcpdump over ssh to pass all the traffic as pcap data to a "normal" Linux system that then takes the pcap data and passes it to snort for processing.

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:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)
» commands by calcutta