You're telling sed ( with the first s ) to substitute all strings that matches the first pattern (things at left of the second slash) whith nothing (right of the second slash).
So if you want to delete all the strings at the right of the % , you can use this :
Guys,
I am trying to understand the sed command here.
adx001 $ a=/clocal/dctrdata/user/dctrdat1/trdroot/recouncil
adx001 $ b=`echo $a | sed 's/\//\\\\\//g'`
adx001 $ echo $b
\/clocal\/dctrdata\/user\/dctrdat1\/trdroot\/recouncil
The sed command i took it from the script.
Please... (3 Replies)
Hi All,
I search the forum for my query, Glad that got solution to it. But i really want to understand how does this command work.
sed -e ':a' -e 's/\("*\),\(*"\)/\1~\2/;ta'
Basically it is replacing all the comma(,) characters in between quotes with a tilde.
Specially what does ':a' ,... (2 Replies)
Hi Guys,
I like to know if i have a process which triggers 10 different child processes.
How to identify out of the 11 processes running which is the parent process and what are the child process?
And if i kill the parent process will the child process be killed.. if not is there a way to... (2 Replies)
I am trying to create a basic script that converts an Oracle script into a Sybase script.
The only things im changing are Datatypes and the to_char and to_date functions.
I am not really 100% sure of the way it works. I have tried running the functions through a loop to replace each word line... (6 Replies)
hi
i was moving a file from one directory to another with the following cmmand
mv /home/hsghh/dfd/parent/file.txt .
while doing so i i accidently
mv /home/hsghh/dfd/dfd .
although i gave ctrl c and terminate the move command some of the file are missing in the parent directory and... (1 Reply)
Hi
I have a questions related 2 commands : 'du' and 'ls'.
Why is the difference between output of 'du' and 'ls' cmd's ?
Command 'du' :
------------------
jakubn@server1 /home/jakubn $ du -s *
4 engine.ksh
1331 scripts
'du -s *' ---> shows block count size on disk (512 Bytes... (5 Replies)
After running nm command on any object file from out put can we get to know that wheather a symbol is a call to a function or definition of function ?
I am searching a class and function definitions inside many .so files.
I have 3 files which contain the symbol but I don't know wheather they... (2 Replies)
I have the following line of code that works wonders. I just don't completely understand it as I am just starting to learn regex. Can you help me understand exactly what is happening here?
find . -type f | grep -v '^\.$' | sed 's!\.\/!!' (4 Replies)
Hi,
can some one suggest me,how "sed" is managed to delete the second field here.
Any explanation on , how the below code is working would be appreciated.
sed 's/^\(*\)::/\1::/' /etc/passwd
sed 's/*:/:/2' /etc/passwd (14 Replies)
Hi Guys,
Could you please kindly explain what exactly the below SED command will do ?
I am quite confused and i assumed that,
sed 's/*$/ /'
1. It will remove tab and extra spaces .. with single space.
The issue is if it is removing tab then it should be Î right ..
please assist.... (3 Replies)
Discussion started by: Nandy
3 Replies
LEARN ABOUT HPUX
fnmatch
fnmatch(3C)fnmatch(3C)NAME
fnmatch() - match filename patterns
SYNOPSIS DESCRIPTION
performs pattern matching as described in regexp(5) under By default, the rule qualifications for filename expansion do not apply; i.e.,
periods (dots) and slashes are matched as ordinary characters. This default behavior can be modified by using the flags described below.
The flag argument modifies the interpretation of pattern and string. If which is defined in is set in flag, a slash character in string
must be explicitly matched by a slash in pattern; it cannot be matched by either the asterisk or question mark special characters or by a
bracket expression.
If is set in flag, a leading period must be explicitly matched. It will not be matched by a bracket expression, question mark or asterisk.
By default, a period is leading if it is the first character in string. If is set in flag, a period is leading if it is the first charac-
ter in string or immediately follows a slash.
If is not set in flag, a backslash character in pattern followed by any other character matches that second character in string. In par-
ticular, matches a backslash in string. If is set, a backslash character is treated as an ordinary character.
If flag is zero, the slash character and the period are treated as regular characters. If flag has any other value, the result is unde-
fined.
RETURN VALUE
If string matches the pattern specified by pattern, returns zero. Otherwise, returns non-zero.
EXAMPLE
The following excerpt uses to check each file in a directory against the pattern
pattern = "*.c";
while(dp = readdir(dirp)){
if((fnmatch(pattern, dp->d_name,0)) == 0){
/* do processing for match */
...
}
}
AUTHOR
was developed by OSF and HP.
SEE ALSO sh(1), glob(3C), thread_safety(5).
STANDARDS CONFORMANCE fnmatch(3C)