Category: Linux (page 2 of 2)
For example, to substitute foo with bar
for f in `grep -lR foo`; do echo -n ">> $f"; sed 's/foo/bar/g' $f > $f.tmp ; mv $f.tmp $f ; echo " done."; done
- 1) for loops on all files containing the text “foo”, grep -l only show the file name with corresponding text inside.
- 3) sed replace foo with bar in all file
- 4) mv save the modification (delete if you don’t want to overwrite the original files, the modified files is named with .tmp at the end)
- 2) & 5) echo: which file is treated
The fastest and more efficient way to batch multiple files encoding conversion :
vim +"argdo se fileencoding=utf-8 | w | bnext" +"q" ` find . -type f -name "*.rsp" `
+”argdo” : execute the following vim commands for each file (filencode, save and next buffer)
+”q” : quit after last one
find : get all files with corresponding name
When I switched to ZSH, and letting BASH behind, I missed some behaviour : one of them was the ability to quit my terminal while some jobs are still alive.
In ZSH, I get a message like this if I exist with running jobs :
zsh you have running jobs
If I exit again, my jobs are killed. But zsh accept some useful option to overide this :
setopt NO_HUP setopt NO_CHECK_JOBS
First one is for not killing process after terminal exit, and second one is for not warning you about it.
Add in ~/.config/gtk-3.0/settings.ini
Remove all entries in ~/.config/user-dirs.dirs but let this one :
If you remove this too, each time nautilus is launched, it will create a ~/Desktop folder.
Remove folder Desktop if it exists
When you’re not on the ‘Desktop Environment‘ side and rather be in light linux config, you have to deal with annoying little problems. I’m using DWM as my tiled window manager and loving it for years. It’s fast, flexible and fun. My linux desktop is up and running after a few seconds… (ok, thanks also to the ssd 🙂 ).
But, after I upgraded to Ubuntu 14.04, I’ve lost the ability to mount my usb disks with the file manager (same problem with Nautilus or Thunar). I’m getting this frustrating “not authorized” message.
My work around was to ‘pmount’ the disk. It works but I need to search for the right device before, with dmesg, then provide the right syntax. Not so fun.
After digging a while, I found out that authorizations are managed with policykit. So after reading man page after man page, posts after posts, I found a way to easily mount my usb disks in my file manager.
Just edit a new policykit config file :
sudo nano /etc/polkit-1/localauthority/50-local.d/55-myconf.pkla
The number and the .pkla extension are mandatory to respect. The name ‘myconf’ is as you will.
Inside this file, insert those lines :
[Dealing with disks]
Now, we have to restart DBUS as it’s the service that launch the polkitd daemon
sudo restart dbus
If you launch, as I do, gnome-settings-daemon manually, you need to relaunch it after dbus
gnome-settings-daemon -r &
That’s it ! Plug a usb drive and use your file manager to browse it. No more ‘not authorized’ message !