Sponsored Content
Top Forums Shell Programming and Scripting using regular expression an shell script!! Post 302113809 by andy2000 on Tuesday 10th of April 2007 10:42:45 AM
Old 04-10-2007
using regular expression an shell script!!

I want to check if the first argument of my shell script starts with a specifiec string?

Any Idea??

Thank u
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to use regular expression in Bash Shell 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

2. Shell Programming and Scripting

problem with Regular expression as input in shell script

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

3. Shell Programming and Scripting

Need help in Regular expression in bash shell

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

4. Shell Programming and Scripting

TCL Script Regular expression

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

5. Programming

Perl: How to read from a file, do regular expression and then replace the found regular expression

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

6. Shell Programming and Scripting

regular expression with shell script to extract data out of a text file

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

7. Shell Programming and Scripting

incorporating a regular expression statement in a shell script (.sh)

I do have a shell file where I call many unix commands . I would like to add a regular expression step in that shell file, where a text file, say Test.txt has to be openned and all the :'s should be replaced. Basically apply the follwoing regular expression: :%s/://g to that particular text... (2 Replies)
Discussion started by: Lucky Ali
2 Replies

8. Shell Programming and Scripting

Help with awk script (syntax error in regular expression)

I've found this script which seems very promising to solve my issue: To search and replace many different database passwords in many different (.php, .pl, .cgi, etc.) files across my filesystem. The passwords may or may not be contained within quotes, single quotes, etc. #!/bin/bash... (4 Replies)
Discussion started by: spacegoose
4 Replies

9. Shell Programming and Scripting

Help with Regular expression in ping script

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

10. UNIX for Beginners Questions & Answers

SHELL: UNIX : Ls regular expression not working when used with variables

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
SCRIPT(1)						    BSD General Commands Manual 						 SCRIPT(1)

NAME
script -- make typescript of terminal session SYNOPSIS
script [-a] [-k] [-q] [-t time] [file [command ...]] DESCRIPTION
The script utility makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1). If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript. If the argument command ... is given, script will run the specified command with an optional argument vector instead of an interactive shell. Options: -a Append the output to file or typescript, retaining the prior contents. -k Log keys sent to program as well as output. -q Run in quiet mode, omit the start and stop status messages. -t time Specify time interval between flushing script output file. A value of 0 causes script to flush for every character I/O event. The default interval is 30 seconds. The script ends when the forked shell (or command) exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)). Certain interactive commands, such as vi(1), create garbage in the typescript file. The script utility works best with commands that do not manipulate the screen. The results are meant to emulate a hardcopy terminal, not an addressable one. ENVIRONMENT
The following environment variable is utilized by script: SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
csh(1) (for the history mechanism). HISTORY
The script command appeared in 3.0BSD. BUGS
The script utility places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. It is not possible to specify a command without also naming the script file because of argument parsing compatibility issues. When running in -k mode, echo cancelling is far from ideal. The slave terminal mode is checked for ECHO mode to check when to avoid manual echo logging. This does not work when in a raw mode where the program being run is doing manual echo. BSD
June 6, 1993 BSD
All times are GMT -4. The time now is 02:33 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy