10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
I am trying to grep search a pattern and a line before it.
cat input
>record1
hello1hello2hellonhello3
>record2
helloohello1hello2hello3
When I use, grep with -o option and either of -A/B/C options, I still can't see lines before or after the pattern. But the exact pattern is... (5 Replies)
Discussion started by: jacobs.smith
5 Replies
2. Shell Programming and Scripting
Hi Guys,
I have a a bash script and i am exporting a variable in it.
I am calling a csh script from this bash script.
The variable "ABC" will be visible in csh script.
ks.bash
export ABC = abc
./kp.csh
ab.csh
echo $ABC
setenv ABC =cde (i want to assign this value to ABC only if... (4 Replies)
Discussion started by: vdhingra123
4 Replies
3. Shell Programming and Scripting
I was wondering if it was possible to grep a pattern based on the surround text. For example, if i have an input file like this:
titleA
titleB
titlex
titleC
titleD
titlex
titleE
And I want to grep "title" and save the results only if it is not followed with a "titlex". My output... (14 Replies)
Discussion started by: jl487
14 Replies
4. UNIX for Advanced & Expert Users
How unix file can be put in the hash table and how to write a program in which the chunk server acts as a client and server .
Can you give me a comprehensive idea of implementation. (0 Replies)
Discussion started by: kswapnadevi
0 Replies
5. Shell Programming and Scripting
I am trying to use csh to do an if statement as below
if ( $tmaxf2 > $tmaxf1 ) then
set tmax = $tmaxf2
else
set tmax = $tmaxf1
endif
Does not work and I'm getting
if: Badly formed number. (0 Replies)
Discussion started by: kristinu
0 Replies
6. Shell Programming and Scripting
hi,
if I grep a file, sometimes I want to see as an eg 2 lines above and below my grep results.
how can this be done
thanks (3 Replies)
Discussion started by: JamesByars
3 Replies
7. UNIX for Advanced & Expert Users
Hi All
I am getting this error when i try to run script from root using other user profile. Command I am running is
"su - user -c command"
Error envounterd
"then: then/endif not found"
Can any body please help me on this ... (4 Replies)
Discussion started by: asadlone
4 Replies
8. Shell Programming and Scripting
hi,
if i have a file and i want to search for the word error using grep, i usually want to see the surrounding lines too as they contain info about the error. what would be a nice way to achieve this?
thanks (6 Replies)
Discussion started by: JamesByars
6 Replies
9. Linux
Linux, C++, make, macro
In source code, we used some #ifdef macros. How can I enable #ifdef macro in the command line of "make" (NOTE: I do NOT want to change source code or makefile to define that macro from time to time).
e.g. test.cpp:
...
#ifdef TEST1
// code segment for test1
...... (3 Replies)
Discussion started by: princelinux
3 Replies
10. UNIX for Dummies Questions & Answers
I would like to be able to grep (or some such thing) a search argument and then display the line plus the preceding 3 lines of the file and the following 3 lines of the file. Any ideas? Thanks in advance! :D (3 Replies)
Discussion started by: robster
3 Replies