Depending upon the occurence of string 'xyz', I want to remove -t from the input file.
There is not a fixed length input file.
Any suggestions
Input file:
this is xyz line -t of the data
this is line 2 of -t of the data
xyz this is line 3 of -t the file
this is line xyz of the -t file... (1 Reply)
Hi,
I have a csv ( comma seperated value) file and I want to search for a particular string in each line of that file only if it occurs only once in the line.
That is same string may be present more than once in a line but I want it to be greped only when it occurs just once.
Please advice... (17 Replies)
Hi All,
I want to search the string for vowel's occurence and find the no of occurence of each vowels, Could anyone help me out? This is urgent to me...I m new to Shell programming..
Thanks and Regards,
Nids:b: (4 Replies)
I need to find the index of last '|' (highlighted in bold) in awk :
|ifOraDatabase.Lastservererr<>0then|iferr_flag<>0then|end if
Please suggest a way... Thanks (5 Replies)
Hi,
I'm a newbie to shell scripting and have searched the forum but couldn't find what i was looking for.
Basically I have a list of filenames like...
123-fileone.txt
I want to be able to extract the prefix up to the first '-'. So I'd end up with 123. I have attempted it using a pretty... (2 Replies)
Hi guys,
I like to find the Line number of Nth Occurence of a Search string in a file.
If possible, if it will land the cursor to that particualar line will be great.
Cheers!! (3 Replies)
Hi Everyone,
I am looking for the unix command by which I can view 10 lines after the 1st occurence of a string (including the 1st occurence)
Example : I have the following lines in a unix file. I have to look for the 1st occurence of the string "How are you" and then view the next 10 lines... (3 Replies)
I have a log file which looks like this:
<845185415165:STATUS:5/0:0:0:0:0|ghy59DI5zasldf87asdfamas8df9asd903tGUVSQx4GJVSQ==>
I have to extract DATE and number of times the keyword STATUS is shown on each date.
Input is : <1354625655744:STATUS:5/0:0:0:0:0|ghy59DI5ztGUVSQx4GJVSQ==>... (8 Replies)
I have file in which the data looks like this,
01,0000000,xxxxxxx/
02,xxxxxxxx,yyyyyy/
03,test1,41203016,,/
01,0000000,xxxxxxx/
02,xxxxxxxx,yyyyyy/ ... (16 Replies)
My data
20161220 20:30:01 MODE 1 TEST 1 SOURCE 1 SET 1
20161220 20:30:02 MODE 1 TEST 2 SOURCE 1 SET 1
20161220 20:30:02 MODE 1 TEST 3 SOURCE 1 SET 1
20161220 20:30:02 MODE 1 TEST 1 SOURCE 2 SET 1
20161220 20:30:04 MODE 1 TEST 1 SOURCE 1 SET 1 MODE 1 TEST 2 SOURCE 2 SET 1
20161220 20:30:02... (7 Replies)
Discussion started by: migurus
7 Replies
LEARN ABOUT OSF1
source
exec(1) User Commands exec(1)NAME
exec, eval, source - shell built-in functions to execute other commands
SYNOPSIS
sh
exec [argument...]
eval [argument...]
csh
exec command
eval argument...
source [-h] name
ksh
*exec [arg...]
*eval [arg...]
DESCRIPTION
sh
The exec command specified by the arguments is executed in place of this shell without creating a new process. Input/output arguments may
appear and, if no other arguments are given, cause the shell input/output to be modified.
The arguments to the eval built-in are read as input to the shell and the resulting command(s) executed.
csh
exec executes command in place of the current shell, which terminates.
eval reads its arguments as input to the shell and executes the resulting command(s). This is usually used to execute commands generated as
the result of command or variable substitution.
source reads commands from name. source commands may be nested, but if they are nested too deeply the shell may run out of file descrip-
tors. An error in a sourced file at any level terminates all nested source commands.
-h Place commands from the file name on the history list without executing them.
ksh
With the exec built-in, if arg is given, the command specified by the arguments is executed in place of this shell without creating a new
process. Input/output arguments may appear and affect the current process. If no arguments are given the effect of this command is to mod-
ify file descriptors as prescribed by the input/output redirection list. In this case, any file descriptor numbers greater than 2 that are
opened with this mechanism are closed when invoking another program.
The arguments to eval are read as input to the shell and the resulting command(s) executed.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
EXIT STATUS
For ksh:
If command is not found, the exit status is 127. If command is found, but is not an executable utility, the exit status is 126. If a redi-
rection error occurs, the shell exits with a value in the range 1-125. Otherwise, exec returns a zero exit status.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 17 Jul 2002 exec(1)