Shell script to read specified value from file and echo to the same location to other file.
Hello.
I want to to backup some "default:" values from a file do some other job and after restore that "default:" values back.
The problem is that the source and destination file has a lot of default: strings in it but with different values...
So..
Here is an example:
A part of my source file named "config.json".
Code:
{ SPane:{
title:"Blinking effect",
description:"Control the way the LED blinks."
}},
{ SCheckBox:{
description:"Completely disable led notifications.",
label:"Disable LED",
default:0,
action:"generic /sys/class/sec/led/led_completely_disable"
}},
{ SCheckBox:{
description:"If disabled, the controller bypasses slope generation.",
label:"Enable LED fading",
default:1,
action:"generic /sys/class/sec/led/led_fade"
}},
{ SSeekBar:{
title:"Fade-in time period",
description:"Sets the time period of the rising slope.",
min:0, max:12, unit:"ms", step:1,
default:2,
action:"generic /sys/class/sec/led/led_fade_in_time"
}},
{ SSeekBar:{
title:"Fade-out time period",
description:"Sets the time period of the falling slope.",
min:0, max:20, unit:"ms", step:1,
default:8,
action:"generic /sys/class/sec/led/led_fade_out_time"
}},
This it will output all default values to "def" file.
Like:
Code:
:0
:1
:2
:8
Note that some values also have strings in it...
So after some other commands the source file change those default values and simply i want to restore those values from "def" file to "config.json" file.
Need shell script to read two file at same time and print output in single file
Example I have two files 1) file1.txt 2) file2.txt
File1.txt contains
Aaa
Bbb
Ccc
Ddd
Eee
Fff
File2.txt contains
Zzz
Yyy
Xxx (10 Replies)
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LEARN ABOUT PHP
led
LED(4) BSD Kernel Interfaces Manual LED(4)NAME
led -- API for manipulating LED's, lamps and other annunciators
SYNOPSIS
#include <dev/led/led.h>
typedef void led_t(void *priv, int onoff);
struct cdev *
led_create_state(led_t *func, void *priv, char const *name, int state);
struct cdev *
led_create(led_t *func, void *priv, char const *name);
void
led_destroy(struct cdev *);
DESCRIPTION
The led driver provides generic support for handling LEDs, lamps and other annunciators.
The hardware driver must supply a function to turn the annunciator on and off and the device name of the annunciator relative to /dev/led/.
The priv argument is passed back to this on/off function and can be used however the hardware driver sees fit.
The lamp can be controlled by opening and writing ASCII strings to the /dev/led/bla device.
In the following, we will use this special notation to indicate the resulting output of the annunciator:
* The annunciator is on for 1/10th second.
_ The annunciator is off for 1/10th second.
State can be set directly, and since the change happens immediately, it is possible to flash the annunciator with very short periods and syn-
chronize it with program events. It should be noted that there is a non-trivial overhead, so this may not be usable for benchmarking or mea-
suring short intervals.
0 Turn the annunciator off immediately.
1 Turn the annunciator on immediately.
Flashing can be set with a given period. The pattern continues endlessly.
f _*
f1 _*
f2 __**
f3 ___***
...
f9 _________*********
Three high-level commands are available:
d%d Numbers. Each digit is blinked out at 1/10th second, zero as ten pulses. Between digits a one second pause and after the last
digit a two second pause after which the sequence is repeated.
s%s String. This gives full control over the annunciator. Letters 'A' ... 'J' turn the annunciator on for from 1/10th to one full
second. Letters 'a' ... 'j' turn the annunciator off for 1/10th to one full second. Letters 'u' and 'U' turn the annunciator
off and on respectively when the next UTC second starts. Unless terminated with a '.', the sequence is immediately repeated.
m%s Morse.
'.' becomes '_*'
'-' becomes '_***'
' ' becomes '__'
'
' becomes '____'
The sequence is repeated after a one second pause.
FILES
/dev/led/*
EXAMPLES
A 'd12' flashes the lamp
*__________*_*______________________________
A 'sAaAbBa' flashes
*_*__**_
/usr/games/morse -l "Soekris rocks" > /dev/led/error
SEE ALSO morse(6)HISTORY
The led driver first appeared in FreeBSD 5.2.
AUTHORS
This software was written by Poul-Henning Kamp <phk@FreeBSD.org>.
This manual page was written by Sergey A. Osokin <osa@FreeBSD.org> and Poul-Henning Kamp <phk@FreeBSD.org>.
BSD April 24, 2007 BSD
08-31-2014
Shell script to read specified value from file and echo to the same location to other file.
i want to restore those values from "def" file to "config.json" file.