I am adding a new HDD to a Unix Sco Release 5 webserver.
I consider myself a windows pro. However, growing up in the late 90's means I have little Unix knowledge. I know the HDD has to be mounted and formatted correctly. Can anyone give me any advice on this?
A dummy's guide to installing a... (5 Replies)
Hi
I am comparing two files, 100th column have formatting issue
i mean 1 file have scale 4 and anothe file scale 2 ,if scale 2 need to add two zeros.Please any idea how to add two zers to 100th coulmn if scale is 2
file 1
.................1234.2000
file2
................1234.20
... (3 Replies)
Hi All
i need a add recored like
DateOfDU2=245,Time=00326 (in milli secounds )
DateOfDU2=245,Time=00347
DateOfDU2=245,Time=00258
DateOfDU2=246,Time=00325
DateOfDU2=246,Time=00408
DateOfDU2=246,Time=00257
DateOfDU2=247,Time=00037
DateOfDU2=247,Time=00417
DateOfDU2=247,Time=00420... (1 Reply)
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)
Hello,
I have a main file with IP addresses like this:
Erisim var,100,172.17.241.5,4006,60,IS0799,TCP/IP
Erisim var,1003,172.17.140.4,4004,60,IS2156,TCP/IP
Erisim var,1004,172.17.140.5,4002,60,IS2636,TCP/IP
Erisim var,1005,172.17.140.5,4004,60,IS2436,TCP/IP
Erisim... (8 Replies)
Hi.
I have a for loop that I use to extract integer values in a shell script (ksh). Now, I would like to add the values. My preference, from my c programming days, would be to do something like the commented out line below in the for loop. However, this is not recognised. So I use the line... (2 Replies)
Hi Admins,
I was told to add new ip,mask and gateway to my 3rd nic.so i prepared a plan doing the same via smitty. now i need to know do i plumb and unplumb before adding ip.
plz suggest
Regards
newaix (1 Reply)
Hello,
suppose I have a file that consists of a single column of various numbers, as in
12.010
1.0080
1.0080
0.8780
0.1350
0.0000
-0.4157
0.2719
How can I use AWK (or equivalent) to add the numbers of two specific lines? I want to sum, for example, the first with the fifth, the second... (4 Replies)
my shell script:
#!/bin/ksh
date +%d > /tmp/day.log
day=`tail /tmp/day.log`
############################
for example:
date +%d shows me 05
i want to add 14 days to 05 into my above script.
bc
5+15
19
but i am not sure how to put into above script. (5 Replies)
I have an array in an external file, "array.txt", which contains:
char *testarray={"Zero", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"};I want to be able to add an element to this array, and have that element display, whenever I call it, without having to recompile... (29 Replies)
Discussion started by: ignatius
29 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)