10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
If i do below command in unix prompt which static values (ie 27..97), it is working fine and gives desired output
>ls -d $WORKDIR/batch/somefilename_{27..97}.* 2>/dev/null
somefilename_27.sometxt
somefilename_28.sometxt
somefilename_29.sometxt
..
somefilename_97.sometxt
But if i want... (2 Replies)
Discussion started by: haiderali
2 Replies
2. Shell Programming and Scripting
Hi everyone,
ping www.google.com | awk 'BEGIN{FS="+";}{if ($10 ~ (/^$/) || (/^\.?/)) print "SLOW"; else print $0}
output
awk: warning: escape sequence `\=' treated as plain `='
PING www.google.com (xxx.xxx.xxx.xxx) 56(84) bytes of data.
64 bytes from xxx.xxx.xxx.xxx icmp_req=2 ttl=128... (3 Replies)
Discussion started by: Apollo
3 Replies
3. Shell Programming and Scripting
hi
i am trying to extract some specific data out of a text file using regular expressions with shell script
that is using a multiline grep .. and the tool i am using is pcregrep so that i can get compatibility with perl's regular expressions
for a sample data like this, i am trying to grab... (6 Replies)
Discussion started by: vemkiran
6 Replies
4. Programming
Hi all,
How am I read a file, find the match regular expression and overwrite to the same files.
open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat";
open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat";
while (<DESTINATION_FILE>)
{
# print... (1 Reply)
Discussion started by: jessy83
1 Replies
5. Shell Programming and Scripting
I have the following script:
For catching errors like:
But the regular expression ERROR*memory inside case doesn't seem to be working.
The output of bash -x scriptname is:
Please help (5 Replies)
Discussion started by: proactiveaditya
5 Replies
6. Shell Programming and Scripting
Hi ,
I'm working on tcl script to extract specific data . I tried to use regular expression (new to regular expression) but I couldn't get it.
here is a smaple of what I'm trying to extract from:
+ 20.167 0 1 cbr 500 ------- 2 5.0 1.3 3091 57612
d 20.167 0 1 cbr 500 ------- 2 5.0 1.3 3091... (1 Reply)
Discussion started by: ENG_MOHD
1 Replies
7. Shell Programming and Scripting
hi,
I have written a script to search MAC address in a given directory.
MAC address would be in format XX.XX.XX.XX.
The digits contain hexadecimal numbers.
For this i have used grep as follows.
grep -rn '^\{1,2\}\.\{1,2\}\.\{1,2\}\.\{1,2\}\$' *
This is not working as required.... (17 Replies)
Discussion started by: flamingo_l
17 Replies
8. Shell Programming and Scripting
Hi,
I have script which will take a string as input and search in a file.
But when I want to search a pattern which has special characters script is ignoring it.
For example: I want to search a pattern "\.tumblr\.com". shell script is removing \ (backslah) and trying to search... (7 Replies)
Discussion started by: Anjan1
7 Replies
9. Shell Programming and Scripting
Hi,
Actually i have written one test.sh (shell program) in bash.
Here i have a variables $a which stored the value package1.
Now I want to write a regular expression inside the if command that "if $a variable contains letter p in the begining of the value package1 then it is coming true.... (5 Replies)
Discussion started by: sunitachoudhury
5 Replies
10. Shell Programming and Scripting
I want to check if the first argument of my shell script starts with a specifiec string?
Any Idea??
Thank u (3 Replies)
Discussion started by: andy2000
3 Replies