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I want to find c function definition with pattern with shell script by checking condition for each line:

data_type
functionname(param_list){
....
}

I knew cscope or ctag is usable for this...

str contains tabs and multiple spaces
str="hello world. How are you?"

I want to check string start with hello world,
and my code is:

if [[ $str ==...

Thank you all for good working solutions. That what I want. Very appreciate your help.

cmdcmd :)

Sample code from apple's xnu code:

struct radix_node {
struct radix_mask *rn_mklist; /* list of masks contained in subtree */
struct radix_node *rn_parent; /* parent */
short rn_bit; /*...

Sorry for my inconvenience post that make you not understanding. I will be careful to read the guideline before post a good quality question in the next posts.

However, I solved it.

The...

I update my questions. Hope you understand what I want.

[UPDATE]

file.txt

apple
apples{
applepicture
apple9
apple cake{
abple
apple_and_cake
appleapple
apple
apple(

and my script
while read line; do
if [[ "$line" == *{ ]]; then...

Is it possible to create new folder and write a new text file in the folder while the current position is outside the new folder? in one line

mkdir folder | echo "hello test"> folder/test.txt
...

Thank you for reply

Let's say I have a file written in C programming
...
int
function A (Param1, Param2)
{
....
}

How to grep this function?

I tried grep -ER '^functionA(.*)/n{' filename > result.txt
Not...

I have several line in a text file. for example
I like apple;
I like apple
I like orange;
Output: I like apple

I try to useif grep -q "!\;$"; then (Not work)
Please use CODE tags when...