Hi!
I'm new here and glad to meet everyone!
I've been wrestling with a problem lately however! How do I recursively (recursive means to keep going through the subdirectories until no more are there) search a bunch of textfiles in a long directory structure for a specific string.. but only... (1 Reply)
Hi All,
I need to search for a string in a file that I've opened and base a decision on the result. The logic is this:
"if the word 'Shared' appears on the first line then
do this on the whole file
else
do this on the whole file
"
The code I currently have isn't working:... (4 Replies)
Hi,
Need to extract a string from one file and search the same in other files.
Ex:
I have file1 of hundred lines with no delimiters not even space.
I have 3 more files.
I should get 1 to 10 characters say substring from each line of file1 and search that string in rest of the files and get... (1 Reply)
Hi,
I'm very new to UNIX scripting and find quite difficult to understand simple UNIX syntax. Really appreciat if somebody could help me to give simple codes for my below problems:-
1) I need to search for a string "TTOH 8031950001" in a files which filename will be "*host*'. For example, the... (3 Replies)
hello, i'm a novice on bsh scripting so thanks for any help here
basically i have a shell var $x that looks like this
> echo $x
nabc1234:!:73394:17155:Gary Mason:/home/garym:/bin/ksh
and i'm trying to keep the first 8 characters and the text from the 4th : to the 5th :
i've been trying... (9 Replies)
Hi Forum.
Is there a quick way to do the following search/replace within a block of data? I tried to google the solution but didn't really know what to look for.
I have the following text file (I want to search for a particular string "s_m_f_acct_txn_daily_a1" and replace the... (5 Replies)
without using conventional file searching commands like find etc, is it possible to locate a file if i just know that the file that i'm searching for contains a particular text like "Hello world" or something? (5 Replies)
Hi
I would like to read a file using perl and search for a string (last entry). Then read that into an array and do further grep
File content for ex:
comp=a,value=30,runtime=12,type=lic
comp=d,value=15,runtime=2,type=lic
comp=a,value=90,runtime=43,type=lic... (1 Reply)
Hi all,
i have a generated report in unix in the following command like
input.txt
47.85,10
0124,42.35,8
0125,3.5,2
the input file format is fixed
I need the my output file with append text as below
output.txt
0124 amount:42.35
0125 amount:3.5
0124 count : 8
0125... (34 Replies)
I have two files
1. input.txt
2. keyword.txt
input.txt has contents like
.src_ref 0 "call.s" 24 first
0x000000 0x5a80 0x0060 BRA.l 0x60
.src_ref 0 "call.s" 30 first
0x000002 0x1bc5 RETI
.src_ref 0 "call.s" 31 first
0x000003 0x6840 ... (2 Replies)
Discussion started by: acdc
2 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)