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Shell Programming and Scripting
Perl Regex problem
Post 302985721 by Corona688 on Monday 14th of November 2016 01:24:39 PM
11-14-2016
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1. Shell Programming and Scripting
Hi,
Can anyone help me to find regular expression for the following in Perl?
"The string can only contain lower case letters (a-z) and no more than one of any letter."
For example: "table" is accepted, whether "dude" is not.
I have coded like this:
$str = "table";
if ($str =~ m/\b()\b/) {... (4 Replies)
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I have got numbers like
l255677
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l188144
l340482
l440700
l254113
to match the numbers starting with '13' what would be the regex
=~/13(.*)/ =======>This is not working ....
But for user123,user657
regex =~/user(.*)/ ========>works
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I am having trouble parsing rpm filenames in a shell script.. I found a snippet of perl code that will perform the task but I really don't have time to rewrite the entire script in perl. I cannot for the life of me convert this code into something sed-friendly:
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Hi,
I get the following when I cat a file *.log
xxxxx
=====
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=====
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HI,
I'm new to perl and need simple regex for reading a file using my perl script.
The text file reads as -
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Hello folks,
Looking for a quick help on regex in my perl script.
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Could anyone please make me understand how the ?= works below ..
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I am not a big expert in regex and have just little understanding of that language.
Could you help me to understand the regular Perl expression:
^(?!if\b|else\b|while\b|)(?:+?\s+){1,6}(+\s*)\(*\) *?(?:^*;?+){0,10}\{
------
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LEARN ABOUT DEBIAN
seivots-summary
SEIVOTS-SUMMARY(1) General Commands Manual SEIVOTS-SUMMARY(1) NAME
seivots-summary - summarize seivot output files SYNOPSIS
seivots-summary [--config=FILE] [--dump-config] [--dump-memory-profile=METHOD] [--dump-setting-names] [--generate-manpage=TEMPLATE] [-h] [--help] [--list-config-files] [--log=FILE] [--log-keep=N] [--log-level=LEVEL] [--log-max=SIZE] [--log-mode=MODE] [--no-default-configs] [--output=FILE] [--version] [FILE]... DESCRIPTION
seivots-summary reads some benchmark result files created by summain(1), and produces summaries of them in tabular form, making it easy to compare results from different benchmark runs. OPTIONS
--config=FILE add FILE to config files --dump-config write out the entire current configuration --dump-memory-profile=METHOD make memory profiling dumps using METHOD, which is one of: none, simple, meliae, or heapy (default: simple) --dump-setting-names write out all names of settings and quit --generate-manpage=TEMPLATE fill in manual page TEMPLATE -h, --help show this help message and exit --list-config-files list all possible config files --log=FILE write log entries to FILE (default is to not write log files at all); use "syslog" to log to system log, or "none" to disable log- ging --log-keep=N keep last N logs (10) --log-level=LEVEL log at LEVEL, one of debug, info, warning, error, critical, fatal (default: debug) --log-max=SIZE rotate logs larger than SIZE, zero for never (default: 0) --log-mode=MODE set permissions of new log files to MODE (octal; default 0600) --no-default-configs clear list of configuration files to read --output=FILE write output to FILE, instead of standard output --version show program's version number and exit EXAMPLE
To summarize all benchmark files: seivots-summary $HOME/obnam/benchmarks/*/*.seivot | less -S SEE ALSO
seivot(1), obnam(1). SEIVOTS-SUMMARY(1)