Post your handy self made command line utilities

jasonwryan · 2012-09-25 19:31:20

Trilby wrote:

Sweet ... I wasn't familiar with xinput. But FYI, "Mouse" would need to be adjusted for laptops with touch/trackpads.

True: I hadn't seen it as general purpose, on my laptops synclient manages the touchpad.

I use this on my dekstop where I tend to accidentally brush against the mouse and the flickering reappearance of the cursor in the corner of my vision tends to induce a micro seizure or some other sort of mildly traumatic neurological event

brando56894 · 2012-10-11 01:03:33

I've crafted this after looking for a quick way to check my available free space of each HDD and the total free space. I would suggest putting it as an alias in you bashrc.

clear;echo "Drive      Size  Used  Avail Use  Mounted on";df -h|grep sd|column -t|sort && df -h --total|cut -c 1-11,17-37|tail -n1

Here's the output from my console

Drive      Size  Used  Avail Use  Mounted on
/dev/sda1  9.9G  5.5G  4.0G  58%  /mnt/chakra
/dev/sda2  922G  779G  143G  85%  /mnt/movies
/dev/sdb1  459G  215G  245G  47%  /mnt/stuff
/dev/sdc1  2.8T  2.3T  501G  83%  /mnt/media
/dev/sdd1  2.8T  2.3T  501G  83%  /mnt/test
/dev/sde1  99M   27M   67M   29%  /boot
/dev/sde3  12G   7.6G  3.7G  68%  /
/dev/sde4  18G   3.0G  14G   18%  /home
total      6.9T  5.5T  1.5T  80%

Trilby · 2012-10-11 01:18:59

df -h --total --type=ext{2,3,4}

Add any other filesystem types you use.

Edit: ah, mine isn't sorted. Still, I think the original could be simplified quite a bit.

df -h --total --type=ext{2,3,4} | sort | awk 'BEGIN { print "Drive\tSize\tUsed\tAvail\tUse\tMount"; } /^[^F]/ { print $0;}'

Sorted.

Last edited by Trilby (2012-10-11 01:23:43)

brando56894 · 2012-10-11 05:42:06

I barely know how to use AWK so thats why I didn't use it. I didn't think the --type flag was necessary since I have a mix of EXT4 and XFS filesystems and it works just fine. Also your headers aren't directly over the columns. That was one of my pet peeves about my original version, hence the use of the echo line instead of df -h|head -n1

Your version doesn't show all my drives either....

 [bran@ra ~]$ echo "Drive      Size  Used  Avail Use  Mounted on";df -h|grep sd|column -t|sort && df -h --total|cut -c 1-11,17-37|tail -n1
Drive      Size  Used  Avail Use  Mounted on
/dev/sda1  9.9G  5.5G  4.0G  58%  /mnt/chakra
/dev/sda2  922G  779G  143G  85%  /mnt/movies
/dev/sdb1  459G  215G  245G  47%  /mnt/stuff
/dev/sdc1  2.8T  2.3T  501G  83%  /mnt/media
/dev/sdd1  2.8T  2.3T  501G  83%  /mnt/test
/dev/sde1  99M   27M   67M   29%  /boot
/dev/sde3  12G   7.6G  3.7G  68%  /
/dev/sde4  18G   3.0G  14G   18%  /home
total      6.9T  5.5T  1.5T  80%
 [bran@ra ~]$ df -h --total --type=ext{2,3,4} | sort | awk 'BEGIN { print "Drive\tSize\tUsed\tAvail\tUse\tMount"; } /^[^F]/ { print $0;}'
Drive   Size    Used    Avail   Use     Mount
/dev/sda1       9.9G  5.5G  4.0G  58% /mnt/chakra
/dev/sdb1       459G  215G  245G  47% /mnt/stuff
/dev/sde1        99M   27M   67M  29% /boot
/dev/sde3        12G  7.6G  3.7G  68% /
/dev/sde4        18G  3.0G   14G  18% /home
total           498G  231G  266G  47%

Last edited by brando56894 (2012-10-11 05:44:03)

jasonwryan · 2012-10-11 05:42:52

Merging with the venerable Command Line Utilities thread...

brando56894 · 2012-10-11 05:44:46

Thanks, I wasn't sure where this belonged.

karol · 2012-10-14 00:24:29

@brando56894 & @Trilby: try findmnt.
'findmnt --fstab' prints in the order you have in /etc/fstab, so it can be sorted the way you want.

Brief output:

findmnt --fstab -o TARGET,SIZE,AVAIL,USE% -t noswap,notmpfs
TARGET  SIZE AVAIL USE%
/boot  98,8M   73M  21%
/       7,2G    2G  68%
/home  29,1G  1,6G  90%

Regular-sized output:

$ (findmnt --fstab -o SOURCE,SIZE,USED,AVAIL,USE%,TARGET -t noswap,notmpfs && df -h --total | tail -n1) | column -t
SOURCE     SIZE   USED   AVAIL  USE%  TARGET
/dev/sda1  98,8M  20,7M  73M    21%   /boot
/dev/sda3  7,2G   4,9G   2G     68%   /
/dev/sda4  29,1G  26,1G  1,6G   90%   /home
total      46G    36G    7,6G   83%

How to properly (i.e. right-aligned) format the middle columns, is left as an exercise for the reader ;P

Getting 'df -h --total' is less than elegant. Custom headers (or no headers at all) are possible but that one-liner would get even longer.

AaronBP · 2012-10-16 04:41:34

tmpfile=$(mktemp)
xclip -selection clipboard -o >$tmpfile
cupsfilter -i text/plain $tmpfile 2>/dev/null
rm $tmpfile

Generate pdf from the contents of the clipboard.

steve___ · 2012-10-16 12:29:30

To save the tmpfile, something like this might work:

cupsfilter -i text/plain <(clip -selection clipboard -o)

enduser · 2012-10-16 22:29:15

So I'm not sure if this has been posted, but if you install the rfc package (`pacman -S rfc`), you can use this to open an rfc in less:

#!/bin/sh

# display an rfc in `less`

# you may want to install http://www.archlinux.org/packages/community/any/rfc/
# with `pacman -S rfc`

RFC_LOCATION="/usr/share/doc/rfc/txt/"

if [ $# -lt 1 ]; then
	echo "Usage: \`$(basename $0) #\` (where # is the number of the rfc you want to see)"
	exit
fi

rfc="$RFC_LOCATION/rfc$1.txt"

if [ ! -e $rfc ]; then
	echo "rfc '#$1' not found"
	exit
fi

less $rfc

For the lazy (myself included), you can put this in ~/bin with:

curl https://raw.github.com/gist/3902455/ -o ~/bin/rfc && chmod +x ~/bin/rfc

Then just:

rfc 2119

to see rfc #2119

achilleas.k · 2012-10-18 15:35:39

I always run htop in my first Yakuake tab so now I just added this to the end of my .bashrc

# make first Yakuake instance run htop (unless htop is already running)
if [[ $( ps -o command $PPID |grep yakuake ) ]];
then
    if [[ ! $(ps -a |grep "\<htop\>" ) ]];
    then
        htop
    fi
fi

steve___ · 2012-10-18 15:40:39

I'm not too sure about the logic, but the syntax can be simplied to something like:

ps -o command "$PPID" | grep yakuake && ps -a | grep "\<htop\>" || htop

achilleas.k · 2012-10-18 15:42:42

I was absolutely certain someone was going to simplify it (which always happens when I share bash code).
Thanks

What do you mean you're not too sure about the logic?

karol · 2012-10-18 15:44:32

pgrep can help

ps -o command "$PPID" | grep yakuake && pgrep -x htop || htop

I don't know what are you trying to do in

if [[ $( ps -o command $PPID |grep yakuake ) ]];

but maybe you can substitute it for some pgrep too.

Last edited by karol (2012-10-18 15:47:06)

steve___ · 2012-10-18 15:51:10

achilleas.k wrote:

What do you mean you're not too sure about the logic?

I mean I didn't stop to think about what it is you're doing. I just noticed the syntax could be simplified.

achilleas.k · 2012-10-18 15:56:39

karol wrote:

I don't know what are you trying to do in
if [[ $( ps -o command $PPID |grep yakuake ) ]];
but maybe you can substitute it for some pgrep too.

Now that I see it, the original version with the "ifs" works as intended. The simplified one-liners don't.
htop should only start if the parent process is Yakuake (the KDE drop-down terminal), not any kind of terminal. The simplified versions start htop in the first terminal that's opened, when htop isn't running.

steve___ · 2012-10-18 15:57:19

karol wrote:

pgrep can help
ps -o command "$PPID" | grep yakuake && pgrep -x htop || htop
I don't know what are you trying to do in
if [[ $( ps -o command $PPID |grep yakuake ) ]];
but maybe you can substitute it for some pgrep too.

Maybe this?

pgrep -s "$PPID" -x yakuake

Last edited by steve___ (2012-10-18 15:58:45)

steve___ · 2012-10-18 16:01:19

achilleas.k wrote:

karol wrote:
I don't know what are you trying to do in
if [[ $( ps -o command $PPID |grep yakuake ) ]];
but maybe you can substitute it for some pgrep too.
Now that I see it, the original version with the "ifs" works as intended. The simplified one-liners don't.
htop should only start if the parent process is Yakuake (the KDE drop-down terminal), not any kind of terminal. The simplified versions start htop in the first terminal that's opened, when htop isn't running.

oops, try:

ps -o command "$PPID" | grep yakuake && { ps -a | grep "\<htop\>" || htop; }

karol · 2012-10-18 16:02:16

achilleas.k wrote:

The simplified versions start htop in the first terminal that's opened, when htop isn't running.

Is it possible to open yakuake and run htop, like

xterm -e htop

?

achilleas.k · 2012-10-18 16:04:25

You mean have Yakuake run htop directly? Wouldn't that make it run every time I open a new tab in Yakuake?

@steve__: Thanks. The brackets did the trick!

steve___ wrote:

Maybe this?

pgrep -s "$PPID" -x yakuake

pgrep -s "$PPID" always returns nothing.
Should it? pgrep only greps against process name. $PPID is the current process parent PID. It shouldn't be "pgreppable".

Last edited by achilleas.k (2012-10-18 16:12:28)

karol · 2012-10-18 16:23:22

achilleas.k wrote:

You mean have Yakuake run htop directly? Wouldn't that make it run every time I open a new tab in Yakuake?

I've installed yakuake and even --help-all doesn't tell me how can I do the equivalent of

urxvtc -pe tabbed -e htop

This code opens htop in the first tab of urxvt, you can bind it to an alias or keybinding and start urxvt that way or put it in ~/.xinitrc.

urxvtc -pe tabbed -e htop
exec dwm

Not sure if you want to do it this way.

I've tried the code you said you have in your .bashrc, but it didn't do anything.

achilleas.k · 2012-10-18 16:29:42

Well the current state is

ps -o command "$PPID" | grep yakuake > /dev/null && { pgrep -x htop > /dev/null || htop; }

and that works exactly as intended, so I'll keep it there.

AaronBP · 2012-10-22 09:36:33

Jesus sloccount is verbose...

sloccount $@ 2>/dev/null | grep '(SLOC)' | fex '-1'

owain · 2012-10-26 21:14:46

A little wrapper for get_iplayer, which I have saved as 'iplayernew', to list new programs and use less if necessary:

#!/bin/bash

TMPFILE=$(mktemp)

get_iplayer --refresh --force | grep Added | sed 's/Added: //' > $TMPFILE

LINECOUNT="$(cat $TMPFILE | wc -l)"

if [[ "$LINECOUNT" == "0" ]]; then
    echo "No new programs" 
elif [[ "$LINECOUNT" -lt "$(tput lines)" ]]; then
    cat $TMPFILE
else
    less $TMPFILE
fi

rm $TMPFILE

Last edited by owain (2012-10-26 21:15:21)

AaronBP · 2012-10-27 05:45:01

This will open the URL for a package:

#!/bin/sh

url=$(eval "expac '%u' $@ || expac -S '%u' $@")

if [ $? -eq 0 ]
then
	xdg-open "$url"
else
	echo 'Package not found.' 1>&2
	exit 1
fi

Last edited by AaronBP (2012-10-27 09:49:49)

Arch Linux

#1951 2012-09-25 19:31:20

Re: Post your handy self made command line utilities

#1952 2012-10-11 01:03:33

Re: Post your handy self made command line utilities

#1953 2012-10-11 01:18:59

Re: Post your handy self made command line utilities

#1954 2012-10-11 05:42:06

Re: Post your handy self made command line utilities

#1955 2012-10-11 05:42:52

Re: Post your handy self made command line utilities

#1956 2012-10-11 05:44:46

Re: Post your handy self made command line utilities

#1957 2012-10-14 00:24:29

Re: Post your handy self made command line utilities

#1958 2012-10-16 04:41:34

Re: Post your handy self made command line utilities

#1959 2012-10-16 12:29:30

Re: Post your handy self made command line utilities

#1960 2012-10-16 22:29:15

Re: Post your handy self made command line utilities

#1961 2012-10-18 15:35:39

Re: Post your handy self made command line utilities

#1962 2012-10-18 15:40:39

Re: Post your handy self made command line utilities

#1963 2012-10-18 15:42:42

Re: Post your handy self made command line utilities

#1964 2012-10-18 15:44:32

Re: Post your handy self made command line utilities

#1965 2012-10-18 15:51:10

Re: Post your handy self made command line utilities

#1966 2012-10-18 15:56:39

Re: Post your handy self made command line utilities

#1967 2012-10-18 15:57:19

Re: Post your handy self made command line utilities

#1968 2012-10-18 16:01:19

Re: Post your handy self made command line utilities

#1969 2012-10-18 16:02:16

Re: Post your handy self made command line utilities

#1970 2012-10-18 16:04:25

Re: Post your handy self made command line utilities

#1971 2012-10-18 16:23:22

Re: Post your handy self made command line utilities

#1972 2012-10-18 16:29:42

Re: Post your handy self made command line utilities

#1973 2012-10-22 09:36:33

Re: Post your handy self made command line utilities

#1974 2012-10-26 21:14:46

Re: Post your handy self made command line utilities

#1975 2012-10-27 05:45:01

Re: Post your handy self made command line utilities

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