Please note, from a security perspective, solutions above that set variables on the basis of the content of the input file, should be evaluated. Theoretically, if someone else controls the contents of the input_file, they can control what shell variables are being used inside the script and potentially mess with the operation of the script.
If the order of the son key/values is always fixed, then an approach for example like this would give more control in that situation:
There are other ways of doing it if the order is not fixed.
Hi all,
I have a field in the line, let's say argument $6, which is in the format 00.00
If i want to split the field to get rid of the "." in between of the amount, how can i do that i awk script?
I have it like this
split($6,a,".")
but it will get rid of the last 2 digits after the... (4 Replies)
Hi all,
im newbie in unix, i have a case like this
file name : RegisterSubscriber.log
file value :
<errId>0x0509000000000003</errId><HARs><ok/><affectEntity>510890905290059</affectEntity></HLRes></HRI>
I want to grep the line which contain 0x0509000000000003,
and i want to grep... (2 Replies)
Is there a way I could use different a different field seperator for different parts of the body?
kinda like
{FS = ":"}
FILENAME == "products"{
price = $3
if(numprods < $1-100)
numprods = $1-100
}
{FS = "/"}{}
FILENAME == "associates"{
associateid... (5 Replies)
Hi Experts,
I have a Input.txt document which contains data fields seperated by tabs. There are 4 fields totally Named UNIQUE, ORDER, CONTACT and WINS. The UNIQUE field contains unique ID and the CONTACT field contains data seperated by comma in some records. I am looking to write an awk script... (12 Replies)
Hello everybody:
I want to replace any field $2 of any file line (f.i. test.txt) matching $1 with a shell variable.
$ cat test.txt
F 0
B A
H -12.33
Now I'm going to ask the value of variable B:
$ SEARCHVAR=B
$ OLDVAL=$(awk -v SEARCHVAR="$SEARCHVAR"... (4 Replies)
Hello,
I am trying to write a shell script that maintains the health of the passwd file. The goal is to check for duplicate usernames, UID's etc. I am able to find and sort out the UID and login names via awk (which I would like to use), but I can't figure out how to save the record field into a... (1 Reply)
Hi All,
I need to get rid of initial meta key from json files with enclosed parenthesis from start and end of the lines which has total 4000 lines.
here is the sample Json records :
{"start": true, "meta": {"name": "xyz", "creation": "2017-07-14T16:20:06.000+02:00"}}
I need to remove... (7 Replies)
Hello guys,
I want to parse a JSON file in order to get the data in a table form.
My JSON file is like this:
{
"document":{
"page":
},
{
"column":
}
]
},
{
... (6 Replies)
This is the sample json I have pasted here. I want all the IP address strings to be converted into an array. For example "10.38.32.202" has to be converted to everywhere in the JSON. There are multiple IPs in a JSON I am pasting one sample object from the JSON. But the IPs already in an Array... (11 Replies)
Hi All,
I am new to shell scripting, Need your help in creating a shell script which converts any unix command output to JSON format output.
example:
sample df -h command ouput :
Filesystem size used avail capacity Mounted
/dev/dsk/c1t0d0s0 8.1G 4.0G 4.0G 50% /... (13 Replies)
Discussion started by: balu1234
13 Replies
LEARN ABOUT LINUX
readkey
readkey(3alleg4) Allegro manual readkey(3alleg4)NAME
readkey - Returns the next character from the keyboard buffer. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int readkey();
DESCRIPTION
Returns the next character from the keyboard buffer, in ASCII format. If the buffer is empty, it waits until a key is pressed. You can see
if there are queued keypresses with keypressed().
The low byte of the return value contains the ASCII code of the key, and the high byte the scancode. The scancode remains the same whatever
the state of the shift, ctrl and alt keys, while the ASCII code is affected by shift and ctrl in the normal way (shift changes case,
ctrl+letter gives the position of that letter in the alphabet, eg. ctrl+A = 1, ctrl+B = 2, etc). Pressing alt+key returns only the scan-
code, with a zero ASCII code in the low byte. For example:
int val;
...
val = readkey();
if ((val & 0xff) == 'd') /* by ASCII code */
allegro_message("You pressed 'd'
");
if ((val >> 8) == KEY_SPACE) /* by scancode */
allegro_message("You pressed Space
");
if ((val & 0xff) == 3) /* ctrl+letter */
allegro_message("You pressed Control+C
");
if (val == (KEY_X << 8)) /* alt+letter */
allegro_message("You pressed Alt+X
");
This function cannot return character values greater than 255. If you need to read Unicode input, use ureadkey() instead.
SEE ALSO install_keyboard(3alleg4), ureadkey(3alleg4), keypressed(3alleg4), clear_keybuf(3alleg4), simulate_keypress(3alleg4)Allegro version 4.4.2 readkey(3alleg4)