Dear All,
I need to add a header of one line to an already existing file.
I know that it can be achieved by the following:
echo "Header" > newfile
cat file1 >> newfile
But my problem is that file is huge and there is no space for creating a new file every time. Is there a way that I can... (5 Replies)
Hello,
I’m trying to add a row that will server as the header for a space separated file.
1-I have a number of files save in a directory
2- grep text path/*.log > newfile
newfile looks like this
Field1 Field2 Field3 Field4
Field1 Field2 Field3 Field4
Field1 Field2 Field3 Field4
Field1... (2 Replies)
I need some help with adding lines to file and substitute a pattern.
Ok I have a file:
#cat names.txt
name: John Doe
stationed: 1
name: Michael Sweets
stationed: 41
.
.
.
And would like to change it to:
name: John Doe
employed
permanently
stationed: 1-office (7 Replies)
Hi All,
I have a file example.csv which looks like this
GrpID,TargetID,Signal,Avg_Num
CSCH74_1_1,2007,61,256
CSCH74_1_1,212007,647,679
CSCH74_1_1,12007,3,32
CSCH74_1_1,207,299,777
I want the output as
GrpID,TragetID,Signal-CSCH74_1_1,Avg_Num
CSCH74_1_1,2007,61,256... (4 Replies)
Hi All,
I have a file example.csv which looks like this
GrpID,TargetID,Signal,Avg_Num
CSCH74_1_1,2007,61,256
CSCH74_1_1,212007,647,679
CSCH74_1_1,12007,3,32
CSCH74_1_1,207,299,777
I want the output as
GrpID,TragetID,Signal-CSCH74_1_1,Avg_Num
CSCH74_1_1,2007,61,256... (1 Reply)
Hi,
I want to add the below Header to all the files in sequence File1,File2,File3...etc
"ABC,<number of chracter in the file>"
e,g - If File1 is as below
pqrstuvdt
abcdefgh
then I want to add the above header into it ,So that File1 becomes as below
ABC,17
pqrstuvdt
abcdefgh
... (9 Replies)
Hi team,
In my script i am storing some value in a variable "header".
I want to add the header value has header in a file.
Please help me on this
Thanks in advance,
Baski (4 Replies)
for example, i have a file with below content:
123413
866688
816866
818818
i want the output as:
This is header
123413
866688
816866
818818
This is trailer
i am able to achieve it using a bash script. (2 Replies)
Hi All ,
I have a pipe dilimited file .Sample file is below.I need to add header in that file through unix.
000001| 1|AQWWW|234,456.00 | | 123456| |41|abC| 0|xyZ|
000002| 2|11 4|1,234,456.99| | 0| |23| |99|! |
000003| 3|!!@#$|0,000,001.10| | ... (4 Replies)
I've been struggling with this one for quite a while and cannot seem to find a solution for this find/replace scenario. Perhaps I'm getting rusty.
I have a file that contains a number of metrics (exactly 3 fields per line) from a few appliances that are collected in parallel. To identify the... (3 Replies)
Discussion started by: verdepollo
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)