Sponsored Content
Top Forums Shell Programming and Scripting Parsing of file for Report Generation (String parsing and splitting) Post 302292396 by cfajohnson on Friday 27th of February 2009 05:37:14 PM
Old 02-27-2009
Quote:
Originally Posted by adderek
If the line can be very long you could expect unexpected problems (like storing too much data into a variable in shell or the line being truncated).

There is no reason either should happen. The variable length is limited only by available memory.
Quote:

On the other side such trick could probably work as well: "for var in $(cat file); do .... done"

The is not the way to read a file. It sets var to each word in the file, not each line.
Quote:
or better - use "read".... you might need to play with the FS/IFS settings.

There is no need to play with IFS to read a file line by line.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

parsing a string

hi i am new to shelll scripting I need to parse a string like "abc,def,ghie,jkl" And assign them to some variables like hs1 = abc hs2 = def hs3 = ghi hs4 = jkl Please help (4 Replies)
Discussion started by: satish@123
4 Replies

2. Shell Programming and Scripting

Perl parsing compared to Ksh parsing

#! /usr/local/bin/perl -w $ip = "$ARGV"; $rw = "$ARGV"; $snmpg = "/usr/local/bin/snmpbulkget -v2c -Cn1 -Cn2 -Os -c $rw"; $snmpw = "/usr/local/bin/snmpwalk -Os -c $rw"; $syst=`$snmpg $ip system sysName sysObjectID`; sysDescr.0 = STRING: Cisco Internetwork Operating System Software... (1 Reply)
Discussion started by: popeye
1 Replies

3. Shell Programming and Scripting

Parsing out the logs and generating report

My file will contain following(log.txt): start testcase: config loading ...... error XXXX ..... end testcase: config loading, result failed start testcase: ping check ..... error ZZZZZ ..... error AAAAA end testcase: Ping check, result failed I am expecting below output. ... (4 Replies)
Discussion started by: shellscripter
4 Replies

4. Shell Programming and Scripting

String-parsing!

I need the perl solution for the following : $string="I LOVE INDIA" now, in a new string i need the first character of each word... that is string2 should be "ILN". (10 Replies)
Discussion started by: vijay_0209
10 Replies

5. Shell Programming and Scripting

String parsing

Hi, name=VDSL_TTV_ HN_SUB create coid=MA5603U phone=5678 portpolicy=APortSelectionPolicy rfu10=TTV rfu3=Dot1q sz7_portmode=VDSL2 rfu5=1234 srprofile.sy_profname=$ADSL_TTV_SubProfile1 I have a line like this. Its a single line.I need the output as name=VDSL_TTV_ HN_SUB create... (1 Reply)
Discussion started by: giri_luck
1 Replies

6. Shell Programming and Scripting

Need help on parsing string

for i in `cat list`;do lol=`curl -m 2 -s ${i} | grep 'class=info' | cut -d '>' -f14 | cut -d '<' -f1 | sed '/^$/d'`; if ;then echo "$i,$lol" >> dirty; echo "$i,$lol";fi; done cut: you must specify a list of bytes, characters, or fields Try `cut --help' for more information. it gave me that... (0 Replies)
Discussion started by: p33plime
0 Replies

7. Shell Programming and Scripting

Parsing a long string string problem for procmail

Hi everyone, I am working on fetchmail + procmail to filter mails and I am having problem with parsing a long line in the body of the email. Could anyone help me construct a reg exp for this string below. It needs to match exactly as this string. GetRyt... (4 Replies)
Discussion started by: cwiggler
4 Replies

8. Shell Programming and Scripting

Parsing diff output into report

Hello all; lat week I was able to get some assistance on creating a summary report from a file generated by a "comm" comparison of twp CSV files...turn out now that I am being asked for a detail report as well...this is beyond my knowledge of perl (and yes I have to use perl)..also please keep... (5 Replies)
Discussion started by: gvolpini
5 Replies

9. UNIX for Dummies Questions & Answers

Help on parsing Oracle RMAN output for string and print sections of a file

Hi, I need some advise on how to print 'sections' of the attached file. I am searching for some that says Marked Corrupt and print some lines after it. At the moment I am running the command below: sed -n -e '/Marked Corrupt/{N;N;p;}' rman_list_validate.txtThis gives me the following... (1 Reply)
Discussion started by: newbie_01
1 Replies

10. Shell Programming and Scripting

Parsing a log file and creating a report script

The log file is huge and lot of information, i would like to parse and make a report . below is the log file looks like: REPORT DATE: Mon Aug 10 04:16:17 CDT 2017 SYSTEN VER: v1.3.0.9 TERMINAL TYPE: prod SYSTEM: nb11cu51 UPTIME: 04:16AM up 182 days 57 mins min MODEL, TYPE, and SN:... (8 Replies)
Discussion started by: amir07
8 Replies
MESSAGES(3)						  libbash messages Library Manual					       MESSAGES(3)

NAME
messages -- libbash library that implements a set of functions to print standard status messages SYNOPSIS
printOK [indent] printFAIL [indent] printNA [indent] printATTN [indent] printWAIT [indent] DESCRIPTION
General messages is a collection of functions to print standard status messages - those [ OK ] and [FAIL] messages you see during Linux boot process. The function list: printOK Prints a standard [ OK ] message (green) printFAIL Prints a standard [FAIL] message (red) printNA Prints a standard [ N/A] message (yellow) printATTN Prints a standard [ATTN] message (yellow) printWAIT Prints a standard [WAIT] message (yellow) Detailed interface description follows. indent Column to move to before printing. Default indent is calculated as TTY_WIDTH-10. If current tty width can not be determined (for example, in case of serial console), it defaults to 80, so default indent is 80-10=10 FUNCTIONS DESCRIPTIONS
printOK [indent] Prints a standard [ OK ] message (green) printFAIL [indent] Prints a standard [FAIL] message (red) printNA [indent] Prints a standard [ N/A] message (yellow) printATTN [indent] Prints a standard [ATTN] message (yellow) printWAIT [indent] Prints a standard [WAIT] message (yellow) EXAMPLES
Run a program named MyProg, and report it's success or failure: echo -n 'Running MyProg...' printWAIT if MyProg ; then printOK else printFAIL fi AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <gil@ran4.net> SEE ALSO
ldbash(1), libbash(1) Linux Epoch Linux
All times are GMT -4. The time now is 12:47 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy