Hi,
We have a flat file with an account number column . Some of the account numbers are just zeros. e.g., 0, 000, 000000.
I am trying to pick out such records which have only zeros in their account number column (column #8). I tried an awk expression :
awk '{ FS=" "}{if ( match($8, "0+") )... (3 Replies)
Hi there,
Can anyone help me find the correct expression for sed.
I want to repace iface eth0 inet wathever
with iface eth0 inet static
Thanks for your help
Santiago (5 Replies)
Hi,
I want to find the files available in a directory /var/user/*/*/data/.
I tried using the command "find /var/user/ -path '*/*/data/ -name '*' -type f" it says find: 0652-017 -path is not a valid option and then i tried using "find /var/user/ -name '*/*/data/*' -type f" but its not... (3 Replies)
I suspect this is commonly done, but haven't found the right combination of search terms to find the answer.
I want to grep for lines in .cpp files that contain only 1 '=' sign in an if statement. e.g.,
if (a = b) -- find this
if (a==b) -- don't find this
My attempt:
egrep... (7 Replies)
Hi,
in the cobol copy books is there any regular expressions to be used in awk to fetch the length of each columns?
below mentioned are the examples.
Copy Book Sample
01 tablename.
02 group header.
03 col1 s9(10)V99.
03 Col2 s9(10)V9(3).
03 Col3 XXXX
02... (7 Replies)
Hello everyone,
first post here, trying to learn scripting on my own and this forum as been really helpful so far. I made few little scripts working great but I m facing some problems with RE.
I have a bunch of files in many subdirectories called *001.ext *002.ext OR simple *.ext or *01.ext... (7 Replies)
Hello all,
I need to print directories using find command. The directories names contain date in the format YYYYMMDD or the name of directory is only the date format. I want print directories, which doesn't start with this date.
E.g I have dirs like
foo20120101
foo20120101foo
20120101foo... (1 Reply)
Hi Gurus,
I need to identify the file with below format:
ABC20110101.DAT
ABCD2011010103.DAT
If I use ABC*\.DAT, it get two file. I want to get file after "ABC' then number, the ".DAT".
I tried
ABC* but it doesn't work.
Thanks in advance. (9 Replies)
I have files:
sum_<INPUT FILENAME>.YYYYMMDDhhmmss.csv
and
sum_details_<INPUT FILENAME>.YYYYMMDDhhmmss.csv
I have no idea, what is input filename, but in the code I would like to catch them in case
I process them in the loop above case statement
for *.${Today}.*.txt... (3 Replies)
Discussion started by: digioleg54
3 Replies
LEARN ABOUT DEBIAN
plan9-grep
GREP(1) General Commands Manual GREP(1)NAME
grep, g - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
g [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines that match the pattern, a regular expression as defined in regexp(7) with
the addition of a newline character as an alternative (substitute for |) with lowest precedence. 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.
-e The following argument is taken as a pattern. This option makes it easy to specify patterns that might confuse argument parsing,
such as -n.
-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.
-f The pattern argument is the name of a file containing regular expressions one per line.
-b Don't buffer the output: write each output line as soon as it is discovered.
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 '...'. An expression starting with '*' will treat the rest of the expression as literal characters.
G invokes grep with -n and forces tagging of output lines by file name. If no files are listed, it searches all files matching
*.C *.b *.c *.h *.m *.cc *.java *.cgi *.pl *.py *.tex *.ms
SOURCE
/src/cmd/grep
/bin/g
SEE ALSO ed(1), awk(1), sed(1), sam(1), regexp(7)DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)