07-08-2019
Just use a regular expression with your favorite text process tool / utility / programming language.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a data file. I want to write a shell script that reads a data file and reads position 19 thru 24. if the data in those fields is 002006, than it should change it to 002007.
example:
hello world hello 002006 hello world hello world
hello world hello 002005 hello world hello world... (6 Replies)
Discussion started by: rudoraj
6 Replies
2. Shell Programming and Scripting
TRASH_PATH:~/deleted/
MAX_VERSIONS:5
FILE_MAX_SIZE:1024
FOLDER_MAX_SIZE:8096
TRASH_MAX_SIZE:1024
LOG_MAX_SIZE:100
how do i change the value of TRASH_MAX_SIZE to 2040 using the script?
the filename is config.ini
please advice
Use code tags, ty. (5 Replies)
Discussion started by: classic
5 Replies
3. Shell Programming and Scripting
Hi all,
Let say I have 2 files, 1 is source file and another is destination file.
Source file contains the following :
Kitten
Dogs
Donkey
Chicken
Turkey
And destination file contains :
Kitten, 0
Dogs, 0
Donkey, 0
Chicken, 0
Turkey, 0
Kitten, 0
Dogs, 0
Donkey, 0 (16 Replies)
Discussion started by: luna_soleil
16 Replies
4. Shell Programming and Scripting
Hi all,
I have this source file source.txt :
hdrEthernetSwitch1IPAddress 112.13.9.34
hdrEthernetSwitch2IPAddress 112.13.8.245
noOfRevASLAvailable 8000
noOfRevASLInUse 122
maxDOSPayload 7777
pcmdEvdoRUM Enabled
pcmdEvdoFlow Enabled
And I have this datafile to be modified :
... (5 Replies)
Discussion started by: luna_soleil
5 Replies
5. Shell Programming and Scripting
I have an array
X = ( -100 -90 -80 -70 -60 -50 -40 30 40 50 60 70 80 90 100 )
I want to find the place where values change from negative to positive. (8 Replies)
Discussion started by: kristinu
8 Replies
6. Shell Programming and Scripting
Hello Guys
I need your suggestions for the below
We have few unix jobs running in different queues
Is there any way I can manage which jobs goes to which queue and to change their nice value as well
Thanks a lot for your valuable suggestions (1 Reply)
Discussion started by: Pratik4891
1 Replies
7. Shell Programming and Scripting
Hi all,
i need help to replace certain values in a file. I need the script to check and match the ID and exNum1. if match, values in $3 (file2.txt) need to replace the value for 'START' (file1.txt) for each match.
The sample structure is like this:-
File1.txt
ID P_6
START ... (4 Replies)
Discussion started by: redse171
4 Replies
8. Shell Programming and Scripting
This is my first time posting here...so be gentle.
Suppose I have a test.conf file that contains a value such as a IP. I would like to be able to use the Dialog Utility in Linux to allow me to enter the new IP in a Dialog form...and the results get saved into the test.conf file in the place... (4 Replies)
Discussion started by: calahanp
4 Replies
9. Shell Programming and Scripting
Hello I have a script that searches a file for a specific string and then changes the nth column after that string. I have searched online for how to do this with sed but have not seemed to find a solution that works for me. I am using bash.
Some background info:
- Currently I am using awk to... (4 Replies)
Discussion started by: prodigious8
4 Replies
10. UNIX for Beginners Questions & Answers
I have xml file like below, i want change the values at default-value place of each argument name using shell script. like
where argument name= protocol and default-value=tcp,
where argument name =port and default-value= 7223,
where argument name = username and default-value=test,
example
... (12 Replies)
Discussion started by: s1s2s3s4
12 Replies
REGEX(3) Library Functions Manual REGEX(3)
NAME
re_comp, re_exec - regular expression handler
SYNOPSIS
char *re_comp(s)
char *s;
re_exec(s)
char *s;
DESCRIPTION
Re_comp compiles a string into an internal form suitable for pattern matching. Re_exec checks the argument string against the last string
passed to re_comp.
Re_comp returns 0 if the string s was compiled successfully; otherwise a string containing an error message is returned. If re_comp is
passed 0 or a null string, it returns without changing the currently compiled regular expression.
Re_exec returns 1 if the string s matches the last compiled regular expression, 0 if the string s failed to match the last compiled regular
expression, and -1 if the compiled regular expression was invalid (indicating an internal error).
The strings passed to both re_comp and re_exec may have trailing or embedded newline characters; they are terminated by nulls. The regular
expressions recognized are described in the manual entry for ed(1), given the above difference.
SEE ALSO
ed(1), ex(1), egrep(1), fgrep(1), grep(1)
DIAGNOSTICS
Re_exec returns -1 for an internal error.
Re_comp returns one of the following strings if an error occurs:
No previous regular expression,
Regular expression too long,
unmatched (,
missing ],
too many () pairs,
unmatched ).
3rd Berkeley Distribution May 15, 1985 REGEX(3)