Hey, I want to have a C program which, for an existing file supplied by the command line argument (E.g. File1.txt) replaces all the occurrences of the words:
"We” or “we” by “I”
“a” by “the”
“A” by “The”.
Then print the replaced file. All other characters of the file are to be left... (1 Reply)
Hello all
i have big test file that has allot of structure text something like this :
<foo1 *.html>
<blah action>
somthing 1
somthing 2
</blah>
</foo1 >
now i will like to insert 2 more lines of text below the <blah action>
so it will be like :
<foo1... (1 Reply)
I want to carry out search & replace for the paths mentioned in the file with the help of vi.
'abc/' to be replaced by 'abc/data'
When I use command in vi as below -
%s/abc//abc/data/g
it gives me an error.
How we should deal with '/' part in string for vi search & replace?
... (6 Replies)
Hi All,
I am just learning shell programming,
I need to do the following in my shell script.
Search a given log file for two\more strings.
If the the two\more strings are found then write it to a outputfile else
if only one of the string is found, write the found string in one output... (2 Replies)
Dear unix gurus,
I have a data file with header information about a subject and also 3 columns of n rows of data on various items he owns. The data file looks something like this:
adam peter
blah blah blah
blah blah blah
car
01 30 200
02 31 400
03 57 121
.. .. ..
.. .. ..
n y... (8 Replies)
find . -type f -name "*.sql" -print|xargs perl -i -pe 's/pattern/replaced/g'
this is simple logic to find and replace in multiple files & folders
Hope this helps.
Thanks
Zaheer (0 Replies)
Hi, I hope the title does not scare people to look into this thread but it describes roughly what I'm trying to do. I need a solution in PHP.
I'm a programming beginner, so it might be that the approach to solve this, might be easier to solve with an other approach of someone else, so if you... (0 Replies)
Hi All,
I am writting a Sell Script, that takes Search String & File Name from the terminal and check for Null Status. If either is NULL then pgm should quit.
I wrote the following:
bash-3.2$ cat null_status_of_parameters.sh
#!/bin/sh
#WASS that takes Search String & File Name from... (2 Replies)
Hi,I have 2 files master.txt & reference.txt as shown below & i require o/p as mentioned in file 3 using awk but content is not replacing properlymaster.txt:... (15 Replies)
Discussion started by: siramitsharma
15 Replies
LEARN ABOUT PLAN9
grep
GREP(1) General Commands Manual GREP(1)NAME
grep - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines (with newlines excluded) that match the pattern, a regular expression as
defined in regexp(6). Normally, each line matching the pattern is `selected', and each selected line is copied to the standard output.
The options are
-c Print only a count of matching lines.
-h Do not print file name tags (headers) with output lines.
-i Ignore alphabetic case distinctions. The implementation folds into lower case all letters in the pattern and input before interpre-
tation. Matched lines are printed in their original form.
-l (ell) Print the names of files with selected lines; don't print the lines.
-L Print the names of files with no selected lines; the converse of -l.
-n Mark each printed line with its line number counted in its file.
-s Produce no output, but return status.
-v Reverse: print lines that do not match the pattern.
Output lines are tagged by file name when there is more than one input file. (To force this tagging, include /dev/null as a file name
argument.)
Care should be taken when using the shell metacharacters $*[^|()= and newline in pattern; it is safest to enclose the entire expression in
single quotes '...'.
SOURCE
/sys/src/cmd/grep.c
SEE ALSO ed(1), awk(1), sed(1), sam(1), regexp(6)DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)