04-20-2009
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hi,
i'm making now a bash script, that runs some compiler... i want to take only errors form its output eg:
output:
bla bla bla
...
erros is 1324546
the bla bla bla
bla bla bla...
...
and i want to get only
erros is 1324546
the bla bla bla (11 Replies)
Discussion started by: miechu
11 Replies
2. Shell Programming and Scripting
hi guys! I`ll really appreciate your help.
The situation is:
i have a log file, and i need to get the needed lines from it.
linecount=$(cat -n http.log | grep ALERT | awk '{print $1}' | wc -l)
lines=$(cat -n http.log | grep ALERT | awk '{print $1}')
1-string gets the number of found lines... (2 Replies)
Discussion started by: neverhood
2 Replies
3. Shell Programming and Scripting
This is the problem actually:
This regex:
egrep "low debug.*\".*\"" $dbDir/alarmNotification.log
is looking for data between the two quotation marks:
".*\"
When I hate data like this:
low debug 2009/3/9 8:30:20.47 ICSNotificationAlarm Prodics01ics0003 IC... (0 Replies)
Discussion started by: ndedhia1
0 Replies
4. Shell Programming and Scripting
I'm trying to search for lines ending with "}" with the following command but am not getting any output.
grep '\}$' myFile.txt
I actually want to negate this (i.e. lines not ending with "}"), but I guess that should be easier once I find the command that finds it? (11 Replies)
Discussion started by: BootComp
11 Replies
5. Shell Programming and Scripting
Hi Gurus,
I have a file say for ex. file1 which has 3500 lines in it which are different account numbers and another file (file2) which has 230000 lines in it. I want to read all the lines in file1 and delete all those lines from file2 which has that same pattern as in file1. I am not quite... (4 Replies)
Discussion started by: toms
4 Replies
6. Shell Programming and Scripting
Dear All,
Please advice me, I have a text file with one field date and time like below given. I need to find out the lines whchi content the time stamp between
Wed May 26 11:03:11 2010 and Wed May 26 11:03:52 2010 both can be included, using awk command which could be an interactive so that I... (6 Replies)
Discussion started by: chinmayadalai
6 Replies
7. Shell Programming and Scripting
Hello all,
I've a problem. I've two logfiles and i need to find lines in the second file by using information from the first file. First I need to extract a searchpattern from the first file. Its like abc=searchpattern&cde=. All between abc= and &cde= is the pattern I need to find in the second... (2 Replies)
Discussion started by: Avarion
2 Replies
8. Shell Programming and Scripting
without using conventional file searching commands like find etc, is it possible to locate a file if i just know that the file that i'm searching for contains a particular text like "Hello world" or something? (5 Replies)
Discussion started by: arindamlive
5 Replies
9. Shell Programming and Scripting
Hi fellas,
I have a file like this:
A_B
B_D
C_D
D_B
E_F
G_H
B_A
F_E
In other words, I have member1_member2 and member2_member1 in the same file. In the exemple aforementioned I have A_B and B_A, B_D and D_B, E_F and F_E.
So, I would like to know a sript that print the lines B_A, D_B... (3 Replies)
Discussion started by: valente
3 Replies
10. UNIX for Dummies Questions & Answers
(1 Reply)
Discussion started by: Twinklefingers
1 Replies
cat(1) General Commands Manual cat(1)
Name
cat - concatenate and print data
Syntax
cat [ -b ] [ -e ] [ -n ] [ -s ] [ -t ] [ -u ] [ -v ] file...
Description
The command reads each file in sequence and displays it on the standard output. Therefore, to display the file on the standard output you
type:
cat file
To concatenate two files and place the result on the third you type:
cat file1 file2 > file3
To concatenate two files and append them to a third you type:
cat file1 file2 >> file3
If no input file is given, or if a minus sign (-) is encountered as an argument, reads from the standard input file. Output is buffered in
1024-byte blocks unless the standard output is a terminal, in which case it is line buffered. The utility supports the processing of 8-bit
characters.
Options
-b Ignores blank lines and precedes each output line with its line number.
-e Displays a dollar sign ($) at the end of each output line.
-n Precedes all output lines (including blank lines) with line numbers.
-s Squeezes adjacent blank lines from output and single spaces output.
-t Displays non-printing characters (including tabs) in output. In addition to those representations used with the -v option, all tab
characters are displayed as ^I.
-u Unbuffers output.
-v Displays non-printing characters (excluding tabs and newline) as the ^x. If the character is in the range octal 0177 to octal 0241,
it is displayed as M-x. The delete character (octal 0177) displays as ^?. For example, is displayed as ^X.
See Also
cp(1), ex(1), more(1), pr(1), tail(1)
cat(1)