08-22-2012
Quote:
Originally Posted by
buttseire
Hi Pamu
Thanks a mil for the quick response!
I have tried in both ways
cat file1.txt | awk -F '"' '{ for (i=1;i<=NF;i++) { if ( ($i ~ /[0-9]/) && (length($i) == 8)) { print $i } } } '
and
awk -F '"' '{ for (i=1;i<=NF;i++) { if ( ($i ~ /[0-9]/) && (length($i) == 8)) { print $i } } } ' file1.txt
(file1.txt being the text example in the 1st post)
...but i get
awk: can't open { for (i=1;i<=NF;i++) { if ( ($i ~ /[0-9]/) && (length($i) == 8)) { print $i } } }
please advise (and thanks again!)
I wouldn't expect to see that error message unless you had a -f option after the -F option and its option-argument. Are you sure you entered the command exactly as shown above? What shell are you using? What is the output from the command
uname -a on the system you're using?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi guys
I need to find both negative and positive numbers from the following text file. And i also dont need 0.
0
8
-7
-2268
007
-07
-00
-0a0
0a0
-07a0
7a00
0a0
Can someone please give a regex to filter out the values in red. I tried a few things in awk but it didnt work... (9 Replies)
Discussion started by: sridanu
9 Replies
2. Shell Programming and Scripting
Hello,
I am doing bash and for that doing excersices. The folowing one asks for 3 numbers and is suppose to return the maximum. An error should be returned if on of the numbers is missing. I managed to solve it. Can you give me other ways or advices.
#!/bin/bash
#Date: 2010.10.19
#Ecrire un... (5 Replies)
Discussion started by: flash80
5 Replies
3. UNIX for Advanced & Expert Users
Hello,
I need to construct a pattern to match the below string (especially the timestamp at the beginning)
20101222100436_temp.dat
The below pattern works _temp.dat
However I am trying find if there are any other better representations.
I tried {14}, but it did not work.
I am on... (5 Replies)
Discussion started by: krishmaths
5 Replies
4. Shell Programming and Scripting
hi all, im having problems. I need to change all number 10 in a text file to word form, or in short from 10->ten. the thing is number 10 including in dates such as 10/22/1997 or 03-10-2011 should not be changed. im having some trouble because the file contains numbers like "price range from... (11 Replies)
Discussion started by: perlishell
11 Replies
5. Shell Programming and Scripting
Hi,
I have a text file with an array of numbers such as :
123 1 456 45 9817 1 45
I would like to replace the digit "1" in a text file with "A". So it looks like this:
123 A 456 45 9817 A 45
If I use sed 's/1/A/g', I get
A23 A 456 45 98A7 A 45
I... (3 Replies)
Discussion started by: jejeking
3 Replies
6. UNIX for Dummies Questions & Answers
I'm trying to grep lines where the digits at the end of each line are greater than digits. Tried this but it will only allow me to specify 2 digits. Any ideas would greatly be appreciated. grep -i '\<\{3,4,5\}\>' file
---------- Post updated at 05:58 PM ---------- Previous update was at 05:41... (1 Reply)
Discussion started by: jimmyf
1 Replies
7. Shell Programming and Scripting
Using these strings as an example:
<a onclick="doShowCHys=1;ShowWindowN(0,'/daman/man.php?asv4=145148&playTogether=True',960,540,943437);return false;" title="">
<a onclick="doShowCHys=1;ShowWindowN(0,'/daman/man.php?asv4=1451486&playTogether=True',960,540,94343);return false;" title="">
<a... (12 Replies)
Discussion started by: metallica1973
12 Replies
8. Shell Programming and Scripting
Trying to do some control flow parsing based on the index postion of an array member. Here is the pseudo code I am trying to write in (preferably in pure bash) where possible. I am thinking regex with do the trick, but need a little help.
pesudo code
if == ENDSINFIVEINTS ]]; then
do... (4 Replies)
Discussion started by: briandanielz
4 Replies
9. UNIX for Dummies Questions & Answers
Trying to find out how to discover if the first 2 characters of a string are "22"
Not sure how.
I could use
if ]; then echo "yes";fi
But I think that will only grab the pattern 22 and not the first 2 digits. (5 Replies)
Discussion started by: newbie2010
5 Replies
10. Programming
Hello,
I am using the Sublime Plugin LogHighlight.
I can use RegEx there to highlight some lines in sublime.
Now I need to find every line, that has a number of above 25000.
the lines look like this:
smart_sdl.result: 8947
smart_sdm.result: 8947
smart_sdn.result: 25000
Currently I am... (3 Replies)
Discussion started by: blend_in
3 Replies
CAT(1) BSD General Commands Manual CAT(1)
NAME
cat -- concatenate and print files
SYNOPSIS
cat [-beflnstuv] [-] [file ...]
DESCRIPTION
The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command line order. A
single dash represents the standard input, and may appear multiple times in the file list.
The word ``concatenate'' is just a verbose synonym for ``catenate''.
The options are as follows:
-b Implies the -n option but doesn't number blank lines.
-e Implies the -v option, and displays a dollar sign ('$') at the end of each line as well.
-f Only attempt to display regular files.
-l Set an exclusive advisory lock on the standard output file descriptor. This lock is set using fcntl(2) with the F_SETLKW command.
If the output file is already locked, cat will block until the lock is acquired.
-n Number the output lines, starting at 1.
-s Squeeze multiple adjacent empty lines, causing the output to be single spaced.
-t Implies the -v option, and displays tab characters as '^I' as well.
-u The -u option guarantees that the output is unbuffered.
-v Displays non-printing characters so they are visible. Control characters print as '^X' for control-X; the delete character (octal
0177) prints as '^?'. Non-ascii characters (with the high bit set) are printed as 'M-' (for meta) followed by the character for the
low 7 bits.
EXIT STATUS
The cat utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
The command:
cat file1
will print the contents of file1 to the standard output.
The command:
cat file1 file2 > file3
will sequentially print the contents of file1 and file2 to the file file3, truncating file3 if it already exists. See the manual page for
your shell (i.e., sh(1)) for more information on redirection.
The command:
cat file1 - file2 - file3
will print the contents of file1, print data it receives from the standard input until it receives an EOF ('^D') character, print the con-
tents of file2, read and output contents of the standard input again, then finally output the contents of file3. Note that if the standard
input referred to a file, the second dash on the command-line would have no effect, since the entire contents of the file would have already
been read and printed by cat when it encountered the first '-' operand.
SEE ALSO
head(1), hexdump(1), lpr(1), more(1), pr(1), tail(1), view(1), vis(1), fcntl(2)
Rob Pike, "UNIX Style, or cat -v Considered Harmful", USENIX Summer Conference Proceedings, 1983.
STANDARDS
The cat utility is expected to conform to the IEEE Std 1003.2-1992 (``POSIX.2'') specification.
The flags [-belnstv] are extensions to the specification.
HISTORY
A cat utility appeared in Version 1 AT&T UNIX. Dennis Ritchie designed and wrote the first man page. It appears to have been cat(1).
BUGS
Because of the shell language mechanism used to perform output redirection, the command ``cat file1 file2 > file1'' will cause the original
data in file1 to be destroyed! This is performed by the shell before cat is run.
BSD
September 23, 2006 BSD