Commands by archlich

Commands by archlich (7)

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zip all files in a directory, one file per zip

Note that this will not work with files with spaces or characters that need to be escaped. Feel free to leave any comments to improve upon this command, and I'll add it in. Thanks! Show Sample Output
This is sample output - yours may be different.
```
zip error: Nothing to do! (..zip)
zipping file: ./stuff
  adding: stuff (stored 0%)
zipping file: ./stuff2
  adding: stuff2 (stored 0%)
zipping file: ./stuff3
  adding: stuff3 (stored 0%)
zipping file: ./zipscript.sh
  adding: zipscript.sh (deflated 16%)
```
-4

for i in $( find . ); do echo zipping file: $i zip $i.zip $i done

archlich · 2009-04-07 20:37:49 12
display most recently modified files

Can pipe to tail or change the awk for for file size, groups, users, etc. Show Sample Output
This is sample output - yours may be different.
```
/etc$ ls -l|awk '{print $6,$8}'|sort -d
 
2003-12-04 locale.alias
2006-05-08 jvm
2006-07-10 mtools.conf
...
2009-03-10 resolv.conf
2009-03-11 purple
2009-03-12 gdm
```
-4

ls -l|awk '{print $6,$8}'|sort -d

archlich · 2009-03-13 19:00:18 10
kill all processes using a directory/file/etc

This command will kill all processes using a directory. It's quick and dirty. One may also use a -9 with kill in case regular kill doesn't work. This is useful if one needs to umount a directory. Show Sample Output
This is sample output - yours may be different.
```
lsof|grep /data/| awk '{print $2}'|xargs kill
kill 1635: No such process
kill 1635: No such process
```
5

lsof|grep /somemount/| awk '{print $2}'|xargs kill

archlich · 2009-03-12 18:42:19 24

If run in bash, this will display all executables that are in your current $PATH Show Sample Output

ls `echo $PATH | sed 's/:/ /g'`

archlich · 2009-03-09 19:01:41 8

Create files of arbitrary size in Windows

This command creates a file of arbitrary size in a windows environment. Show Sample Output
This is sample output - yours may be different.
```
fsutil file createnew deleteme 1024
File C:\deleteme is created

C:\>dir deleteme
...
Directory of C:\
02/05/2009  12:33 PM             1,024 deleteme
               1 File(s)          1,024 bytes
               0 Dir(s)   8,777,101,312 bytes free
```
0

fsutil file createnew FILENAME filesize(inbytes)

archlich · 2009-02-05 17:36:33 22
easily convert one unit to another

Easily convert units of similar measurement. May also be invoked alone, units. Show Sample Output
This is sample output - yours may be different.
```
units "2048 bytes" "kibibytes"
	* 2
	/ 0.5
units "40 furlongs" "meters"
	* 8046.72
	/ 0.00012427424
units "1 au" "light seconds"
	* 499.00478
	/ 0.0020039888
```
3

units "2048 bytes" "kibibytes"

archlich · 2009-02-05 16:36:25 32
kill all processes with name or argument

Be careful when issuing this command, it may kill unwanted processes! To only search on the process name don't use the argument -f, pkill foo Show Sample Output
This is sample output - yours may be different.
```
ps -ef|grep foo
1000      1713  1601  0 11:09 pts/5    00:00:00 tail -f foo.txt
1000      1819 32165  0 11:10 pts/2    00:00:00 grep foo
pkill -f foo
ps -ef|grep foo
```
-2

pkill -f foo

archlich · 2009-02-05 16:12:53 55

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set your screensaver as your desktop background MAC OSX

Grep syslog today last hour

Uses date to grep de logfile for today and uses it to get the last hour logs. Can be used to get last minute logs or today's logs.

Check if *hardware* is 32bit or 64bit

This command tell you if your hardware is 32 or 64 bits even if you install a 32bits OS on a 64 bits hardware. If your distro don't support the -q switch, try doing : $ grep &>/dev/null '\' /proc/cpuinfo && echo 64 bits || echo 32 bits

Function to create an alias on the fly

Is used like this: mkalias rmcache "rm -rfv app/cache/*"

Get the size of all the directories in current directory

OSX's BSD version of the du command uses the -d argument instead of --max-depth.

youtube2m3u

generate playlists from youtube ( or othre things that support yt-dlp)

view the system memory in clear text

see what's in your memory right now... sometimes you find passwords, account numbers and url's that were recently used. Anyone have a safe command to clear the memory without rebooting?

Check if port is open on remote machine

Check if port is open, if you don't have ncat on your machine.

Get the Nth argument of the last command (handling spaces correctly)

Bash's history expansion character, "!", has many features, including "!:" for choosing a specific argument (or range of arguments) from the history. The gist is any number after !: is the number of the argument you want, with !:1 being the first argument and !:0 being the command. See the sample output for a few examples. For full details search for "^HISTORY EXPANSION" in the bash(1) man page. Note that this version improves on the previous function in that it handles arguments that include whitespace correctly.

Extracting a range of pages from a PDF, using GhostScript

In this example we extract pages 14-17

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