When restoring a file in my uninstall program I need to remove the lines I added to a file during the install. In between the file can be modified by the users.
Assume file1 is as follow:
xxx str2 xxxx
.....
...The Following lines containing str* have to be removed...
xxx str1 xxxx
xxx ... (17 Replies)
I have searched the forum for this - forgive me if I missed a previous post.
I have the following file:
blah blah blah
blah blah blah
blah blah blah
blah blah blah
blah blah blah
alter table "informix".esc_acct add constraint (foreign key (fi_id)
references "informix".fi ... (5 Replies)
Howdy.
I know this is most likely possible using sed or awk or grep, most likely a combination of them together, but how would one go about running a grep like command on a file where you only try to match your pattern to the second field in a line, space delimited?
Example:
You are... (3 Replies)
Trying to sum field #6 when field #2 matches string as follows:
Input data:
2010-09-18-20.24.44.206117 UOWEXEC db2bp DB2XYZ hostname 1
2010-09-18-20.24.44.206117 UOWWAIT db2bp DB2XYZ hostname ... (3 Replies)
Hi,
I have requirement that I need to split my input file into two files based on a search pattern "abc"
For eg. my input file has below content
abc
defgh
zyx
I need file 1 with
abc
and file2 with
defgh
zyx
I can use grep command to acheive this. But with grep I need... (8 Replies)
I have this
text.filecharles darwin sam delight
george washington johnson culper
darwin sam delight
micheal jackson penny lite and would like to remove the row, if the first field is blank. so the result would be:
result.filecharles darwin sam ... (4 Replies)
Hi,
I have an issue to combine multiple lines of a file. I have records as below.
Fields are delimited by TAB. Each lines are ending with a new line char (\n)
Input
--------
ABC 123456 abcde 987
890456 7890 xyz
ght gtuv
ABC 5tyin 1234 789
ghty kuio
ABC ghty jind 1234
678 ght
... (8 Replies)
Using the attached file, the below awk command results in the output below:
I can not seem to produce the desired results and need some expert help. Thank you :).
awk -F'' '
{
id += $4
value += $5
occur++
}
END{
printf "%-8s%8s%8s%8s\n", "Gene", "Targets", "Average Depth", "Average... (3 Replies)
I am trying to remove all the lines and spaces where the count in $4 or $5 is greater than 1 (more than 1 letter). The file and the output are tab-delimited. Thank you :).
file
X 5811530 . G C NLGN4X
17 10544696 . GA G MYH3
9 96439004 . C ... (1 Reply)
In the awk piped to sed below I am trying to format file by removing the odd xxxx_digits and whitespace after, then move the even xxxx_digit to the line above it and add a space between them. There may be multiple lines in file but they are in the same format. The Filename_ID line is the last line... (4 Replies)
Discussion started by: cmccabe
4 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)