Difference between pages "File:Snapshot-bg-xclock.png" and "Find out where configuration changes are stored"
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+ | Whenever I set up a computer, I start konsole and change its settings. I choose Settings -> Configure Current Profile -> Tabs -> "Show 'New Tab' and 'Close Tab' buttons in tab bar". Today I wanted to write a script to do this configuration change for me. The most important question is - where is this setting being saved? | ||
+ | I could find this out using the command | ||
+ | strace -ffe open konsole | ||
+ | [[strace]] is a cool [[command]] that shows you every syscall invoked by a program (in the above case konsole). When called with the -e open argument, it will only show the open syscalls. This gives you a powerful tool into your hands: A monitor which files are read and/or modified by a program. The output will read like this: | ||
+ | [pid 29951] open("/etc/localtime", O_RDONLY) = 3 | ||
+ | [pid 29951] open("/etc/kde4rc", O_RDONLY|O_CLOEXEC) = 3 | ||
+ | [pid 29951] open("/root/.kde4/share/config/kdeglobals", O_RDONLY|O_CLOEXEC) = 3 | ||
+ | The -ff argument is needed so strace still follows spawning processes; for more information, read [http://man-wiki.net/index.php/1:strace strace's man page]. | ||
+ | |||
+ | So I did [[open a console]], entered | ||
+ | strace -ffe open konsole | ||
+ | A konsole window popped up and I chose Settings -> Configure Current Profile -> Tabs -> "Show 'New Tab' and 'Close Tab' buttons in tab bar". When I clicked on "Apply", I found a line saying | ||
+ | [pid 29951] open("/root/.kde4/share/apps/konsole/Shell.profile", O_RDONLY|O_CLOEXEC) = 16 | ||
+ | And I could verify my changes go to /root/.kde4/share/apps/konsole/Shell.profile: | ||
+ | # [[cat]] /root/.kde4/share/apps/konsole/Shell.profile | ||
+ | [...] | ||
+ | ShowNewAndCloseTabButtons=false | ||
+ | [...] | ||
+ | |||
+ | [[Category:Geeky]] |
Revision as of 09:33, 22 December 2011
Whenever I set up a computer, I start konsole and change its settings. I choose Settings -> Configure Current Profile -> Tabs -> "Show 'New Tab' and 'Close Tab' buttons in tab bar". Today I wanted to write a script to do this configuration change for me. The most important question is - where is this setting being saved?
I could find this out using the command
strace -ffe open konsole
strace is a cool command that shows you every syscall invoked by a program (in the above case konsole). When called with the -e open argument, it will only show the open syscalls. This gives you a powerful tool into your hands: A monitor which files are read and/or modified by a program. The output will read like this:
[pid 29951] open("/etc/localtime", O_RDONLY) = 3 [pid 29951] open("/etc/kde4rc", O_RDONLY|O_CLOEXEC) = 3 [pid 29951] open("/root/.kde4/share/config/kdeglobals", O_RDONLY|O_CLOEXEC) = 3
The -ff argument is needed so strace still follows spawning processes; for more information, read strace's man page.
So I did open a console, entered
strace -ffe open konsole
A konsole window popped up and I chose Settings -> Configure Current Profile -> Tabs -> "Show 'New Tab' and 'Close Tab' buttons in tab bar". When I clicked on "Apply", I found a line saying
[pid 29951] open("/root/.kde4/share/apps/konsole/Shell.profile", O_RDONLY|O_CLOEXEC) = 16
And I could verify my changes go to /root/.kde4/share/apps/konsole/Shell.profile:
# cat /root/.kde4/share/apps/konsole/Shell.profile [...] ShowNewAndCloseTabButtons=false [...]
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