10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi All,
I'm relatively new to Unix scripting and am trying to get my head around piping.
I'm trying to take a header record from one file and prepend it to another file. I've done this by creating several temp files but i'm wondering if there is a cleaner way to do this.
I'm thinking... (10 Replies)
Discussion started by: BigCroyd
10 Replies
2. Shell Programming and Scripting
Hi,
I am running a script sample.sh in bash environment .In the script i am using sed and awk commands which when executed individually from terminal they are getting executed normally but when i give these sed and awk commands in the script it is giving the below errors :-
./sample.sh: line... (12 Replies)
Discussion started by: satishmallidi
12 Replies
3. Shell Programming and Scripting
Hello,
I'm working with this command which I'm having trouble understanding it:
sed -e '1,$ s/SUB/N/g' < $1 > file.txt
Where SUB stand for an special character with code in ASCII is 0x1A, notepad read it as a right arrow.
Any help will be appreciated. (5 Replies)
Discussion started by: emilioveras
5 Replies
4. Shell Programming and Scripting
Hello All,
I have something like below
LDC100/rel/prod/libinactrl.a
LAA2000/rel/prod/libinactrl.a
I want to remove till first forward slash that is outputshould be as below
rel/prod/libinactrl.a
rel/prod/libinactrl.a
How can I do that ??? (8 Replies)
Discussion started by: anand.shah
8 Replies
5. UNIX for Advanced & Expert Users
Hi.....
I'm using sed command for replace the words in a file
cat >test.txt
My test.txt contains
Mary had a little ham
Mary fried a lot of spam
Jack ate a Spam sandwich
Jill had a lamb spamwich
Marry had a spicy wich
$ sed 's/wich$/mirchi/g' test.txt
output is:
Mary had a little ham... (24 Replies)
Discussion started by: ksrivani
24 Replies
6. UNIX for Dummies Questions & Answers
I know this script is crummy, but I was just messing around.. how do I get sed's insert command to allow variable expansion to show the filename?
#!/bin/bash
filename=`echo $0`
/usr/bin/sed '/#include/ {
i\
the filename is `$filename`
}' $1
exit 0 (8 Replies)
Discussion started by: glev2005
8 Replies
7. Shell Programming and Scripting
Hello,
Can any perl experts help me convert my sed string to perl. I am unsuccessful with this.
I have to remove this string from html files OAS_AD('Top');
I have come up with this. However the requirement is in perl.
for find in $(find . -type f -name "file1.html") ; do cat $find |... (2 Replies)
Discussion started by: abacus
2 Replies
8. UNIX for Dummies Questions & Answers
hi all,
attached you can find a small txt file ( .txt ),
GIVEN that past_scheduler="islip" and scheduler="mucf"
can somebody please tell me
WHY sed 's/-u '$past_scheduler'/-u '$scheduler'/g' .txt > .txt.temp fails ?
thanx (3 Replies)
Discussion started by: OneDreamCloser
3 Replies
9. Shell Programming and Scripting
Okay, title is kind of confusion, but basically, I have a lot of scripts on a server that I need to replace a ps command, however, the new ps command I'm trying to replace the current one with pipes to sed at one point. So now I am attempting to create another script that replaces that line.
... (1 Reply)
Discussion started by: cbo0485
1 Replies
10. Shell Programming and Scripting
Sorry for the duplicate thread this one is similar to the one in
https://www.unix.com/shell-programming-scripting/88132-awk-sed-script-read-values-parameter-files.html#post302255121
Since there were no responses on the parent thread since it got resolved partially i thought to open the new... (4 Replies)
Discussion started by: rajan_san
4 Replies
MEMMEM(3) Linux Programmer's Manual MEMMEM(3)
NAME
memmem - locate a substring
SYNOPSIS
#define _GNU_SOURCE
#include <string.h>
void *memmem(const void *haystack, size_t haystacklen,
const void *needle, size_t needlelen);
DESCRIPTION
The memmem() function finds the start of the first occurrence of the substring needle of length needlelen in the memory area haystack of
length haystacklen.
RETURN VALUE
The memmem() function returns a pointer to the beginning of the substring, or NULL if the substring is not found.
CONFORMING TO
This function is a GNU extension.
BUGS
This function was broken in Linux libraries up to and including libc 5.0.9; there the needle and haystack arguments were interchanged, and
a pointer to the end of the first occurrence of needle was returned.
Both old and new libc's have the bug that if needle is empty, haystack-1 (instead of haystack) is returned. And glibc 2.0 makes it worse,
returning a pointer to the last byte of haystack. This is fixed in glibc 2.1.
SEE ALSO
strstr(3), feature_test_macros(7)
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU
2008-12-05 MEMMEM(3)