i am still confusing on how to use sed, grep and awk if the input is not a file but a variable.
such as:
a="hello world"
b="how are you"
c="best wish to you"
d="222,333,444"
what if i want to check which variable $a,$b,$c,$d have contain "you"
what if i want to replace the word "you"... (9 Replies)
Hi,
I'm quite new to scripting and I want to modify following line of an existing script:
MYVAR=`subst |grep 'L:\\\:' | sed -e 's/.*\\\//'`;
What I have to do is to use the content of a variable instead of the constant expression 'L:\\\:' as the grep string to be matched.
Assuming I already... (5 Replies)
I'm trying to find files which have urls such as "services/amf/fri/home.html" and "services/amj/fri/air.html" - so the pattern I want to match with grep, logically, is one that has
1. "services/"
2. stuff in between including slashes, numbers, underscores etc
3. ending in "html"
Can... (5 Replies)
Hi ,
Help required
i want to grep a pattern from a file using "grep -n" command
then cut the field (i.e line number return by cut command) and
assign it to a variable
e.g
var=grep -n "end" FILE1 | cut -f1 -d":"
But i am not able to perform this operation.
i am performing all... (6 Replies)
Hi, I've been running code which very frequently calls books.csv. e.g:
grep -i horror books.csv > tempExcept, I'm trying to move away from using temporary files or frequently calling books.csv to improve efficiency. So I tried something like
bookfile=$(cat books.csv)
grep -i horror... (4 Replies)
Here is the sample of my file address.txt
Address 1
1234 Drive way
New Orleans, LA
Zipcode :- 12345
Address 2
4567 Spring way
Chicago, IL
Zipcode :- 67890
I would like to grep for an Address title (Ex :- Address 2) , then get its zipcode and echo both in a single line. Ex :- ... (3 Replies)
Dear All,
we have a command output which looks like :
Total 200 queues in 30000 Kbytes
and we're going to get "200" and "30000" for further process. currently, i'm using :
numA=echo $OUTPUT | awk '{print $2}'
numB=echo $OUTPUT | awk '{print $5}'
my question is : can I use just one... (4 Replies)
Hi guys,
I'm currently writing a script for automating a FreeBSD ZFS setup (ZFSonRooT). I got stuck at one point for raidz(1,2 a.k.a raid5,6) and am in need of assistance.
This is what I need. example:
#!/bin/sh <- must stay sh
echo -n "hdd list: "
read hdd_list
echo -n "hdd label list:... (2 Replies)
I have the following script, and I want to assign the output ($10 and $5) from awk to N and L:
grdinfo data.grd | awk '{print $10,$5}'| read N L
output from gridinfo data.grd is: data.grd 50 100 41 82 -2796 6944 0.016 0.016 3001 2461. where N and L is suppose to be 3001 and 100. I use... (8 Replies)
Discussion started by: geomarine
8 Replies
LEARN ABOUT OPENDARWIN
zgrep
ZGREP(1) General Commands Manual ZGREP(1)NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci-
fied, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and
fed to grep.
If zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep uses
it as the grep program to be invoked. For example:
for sh: GREP=fgrep zgrep string files
for csh: (setenv GREP fgrep; zgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)ZGREP(1)