Sponsored Content
Top Forums Shell Programming and Scripting Searching a string for a character Post 95314 by vino on Tuesday 10th of January 2006 07:10:31 AM
Old 01-10-2006
Quote:
Originally Posted by manthasirisha
i didnt get what is the significance of /dev/null there in the code?
Grep, in its simplest form, has this habit of shouting out loud, about the things it discovered. And if it did find, then the exit status is 0. Else 1.

In the OP's case, he wants only detect the presence of a letter in a string. So whatever grep outputs, be it success or failure, discard it.

Here is a non-grep solution as well

Code:
[~/temp]$ echo $LANG
en_US.UTF-8
[~/temp]$ [[ "$LANG" == *US* ]] && echo "US LANG" || echo "LOCALE"
US LANG
[~/temp]$

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

searching for $ character

I need to search in text files for the $ character. I tried putting it in double quotes and single quotes . ie grep "$" filename but unix finds everything in the file. Whats the best way to do this? thanks (4 Replies)
Discussion started by: MizzGail
4 Replies

2. Shell Programming and Scripting

Extracting a string from one file and searching the same string in other files

Hi, Need to extract a string from one file and search the same in other files. Ex: I have file1 of hundred lines with no delimiters not even space. I have 3 more files. I should get 1 to 10 characters say substring from each line of file1 and search that string in rest of the files and get... (1 Reply)
Discussion started by: mohancrr
1 Replies

3. Shell Programming and Scripting

Korn: How to loop through a string character by character

If I have a string defined as: MyString=abcde echo $MyString How can I loop through it character by character? I haven't been able to find a way to index the string so that I loop through it. shew01 (10 Replies)
Discussion started by: shew01
10 Replies

4. UNIX for Dummies Questions & Answers

Searching a particular character in a file

Hi, I want to search how many times is "a" present in a file named "data". How to do this? Please help (4 Replies)
Discussion started by: gautamshaw
4 Replies

5. Shell Programming and Scripting

searching the required string and appending string to it.

Hi all, I have some data in the form of adc|nvhs|nahssn|njadnk|nkfds in the above data i need to write a script so thet it will append "|||" to the third occurnace in the string ..... the outout should look like adc|nvhs|nahssn||||njadnk|nkfds Thanks, Firestar. (6 Replies)
Discussion started by: firestar
6 Replies

6. Shell Programming and Scripting

Awk: Searching for length of words between slash character

Dear UNIX Community, I have a set of file paths like the one below: \\folder name \ folder1 \ folder2 \ folder3 \ folder4 \\folder name \ very long folder name \ even longer name I would like to find the length of the characters (including space) between the \'s. However, I want... (6 Replies)
Discussion started by: vnayak
6 Replies

7. UNIX for Dummies Questions & Answers

Exclude new line character while searching

Hi, I have a log file and want to search "0.48976360737438795" with excluding new line character. Currently i am using the following command: cat LogFile.log | tr -d '\n' | grep '0.48976360737438795' This command giving me the response if file size is small but if i am using a big file... (11 Replies)
Discussion started by: ankit jain
11 Replies

8. Shell Programming and Scripting

Searching Alphanumeric Character From a File

Hi, In a error log file, the error code of a particular error contains both Alphabet and Numbers. My problem statement is to find the error codes from a particular log. That means, I need to search a word, which contains both alphabet and number. Please help me. Below is two examples of error... (1 Reply)
Discussion started by: snehasish_jana
1 Replies

9. Shell Programming and Scripting

Searching invalid character in list of client name

Hi Friend, I have a client name list and client name has some invalid character due to which some issue raised and list of client are15k. I want to make script who find invalid character name. can you please help me how i can make script, i means i need logic. Valid character are :- ... (5 Replies)
Discussion started by: pallvi_mahajan
5 Replies

10. Shell Programming and Scripting

sed searches a character string for a specified delimiter character, and returns a leading or traili

Hi, Anyone can help using SED searches a character string for a specified delimiter character, and returns a leading or trailing space/blank. Text file : "1"|"ExternalClassDEA519CF5"|"Art1" "2"|"ExternalClass563EA516C"|"Art3" "3"|"ExternalClass305ED16B8"|"Art9" ... ... ... (2 Replies)
Discussion started by: fspalero
2 Replies
GEARMAN_WORKER_SET_TIMEOUT(3)					     Gearmand					     GEARMAN_WORKER_SET_TIMEOUT(3)

NAME
gearman_worker_set_timeout - Gearmand Documentation, http://gearman.info/ SYNOPSIS
#include <libgearman/gearman.h> gearman_worker_st gearman_worker_set_task_context_free_fn int gearman_worker_timeout(gearman_worker_st *worker) void gearman_worker_set_timeout(gearman_worker_st *worker, int timeout) void *gearman_worker_context(const gearman_worker_st *worker) void gearman_worker_set_context(gearman_worker_st *worker, void *context) void gearman_worker_set_workload_malloc_fn(gearman_worker_st *worker, gearman_malloc_fn *function, void *context) void gearman_worker_set_workload_free_fn(gearman_worker_st *worker, gearman_free_fn *function, void *context) gearman_return_t gearman_worker_wait(gearman_worker_st *worker) gearman_return_t gearman_worker_register(gearman_worker_st *worker, const char *function_name, uint32_t timeout) gearman_return_t gearman_worker_unregister(gearman_worker_st *worker, const char *function_name) gearman_return_t gearman_worker_unregister_all(gearman_worker_st *worker) gearman_job_st *gearman_worker_grab_job(gearman_worker_st *worker, gearman_job_st *job, gearman_return_t *ret_ptr) void gearman_job_free_all(gearman_worker_st *worker) bool gearman_worker_function_exist(gearman_worker_st *worker, const char *function_name, size_t function_length) gearman_return_t gearman_worker_work(gearman_worker_st *worker) Link with -lgearman DESCRIPTION
gearman_worker_st is used for worker communication with the server. gearman_worker_context() and gearman_worker_set_context() can be used to store an arbitrary object for the user. gearman_worker_set_task_context_free_fn() sets a trigger that will be called when a gearman_task_st is released. gearman_worker_timeout() and gearman_worker_set_timeout() get and set the current timeout value, in milliseconds, for the worker. gearman_worker_function_exist() is used to determine if a given worker has a specific function. Normally malloc(3) and free(3) are used for allocation and releasing workloads. gearman_worker_set_workload_malloc_fn() and gearman_worker_set_workload_free_fn() can be used to replace these with custom functions. If you need to remove a function from the server you can call either gearman_worker_unregister_all() to remove all functions that the worker has told the gearmand server about, or you can use gearman_worker_unregister() to remove just a single function. RETURN
Various HOME
To find out more information please check: http://gearman.info/ SEE ALSO
gearmand(8) libgearman(3) AUTHOR
Data Differential http://www.datadifferential.com/ COPYRIGHT
2012, Data Differential, http://www.datadifferential.com/ 0.33 May 04, 2012 GEARMAN_WORKER_SET_TIMEOUT(3)
All times are GMT -4. The time now is 08:48 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy