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UNIX for Dummies Questions & Answers
Replace string and create new file multiple times
Post 302974092 by RavinderSingh13 on Wednesday 25th of May 2016 02:05:48 PM
05-25-2016
Moderator
Quote:
EGADS. This worked beautifully!
One minor question while I try to work out all the syntax: the two sets of files for comparison (what I previously referred to as 001.txt and blah1.txt) actually have the same numbering system - since there are hundreds of them - but with a different letter prefix for each set, i.e., a001..a300.txt and b001..b300.txt. I only want the numbers starting with a to increase without changing b. Where should I specify/add this prefix?
Sorry for the confusion!
---------- Post updated at 07:01 PM ---------- Previous update was at 06:47 PM ----------
Just tried it.
The search and replace bit works perfectly. It only creates a single new file though, called file02. However, it's a little strange because if I delete this file and run the script again, the replacement is called file03 (instead of file02 again). Hope that makes sense.
One minor question while I try to work out all the syntax: the two sets of files for comparison (what I previously referred to as 001.txt and blah1.txt) actually have the same numbering system - since there are hundreds of them - but with a different letter prefix for each set, i.e., a001..a300.txt and b001..b300.txt. I only want the numbers starting with a to increase without changing b. Where should I specify/add this prefix?
Sorry for the confusion!
---------- Post updated at 07:01 PM ---------- Previous update was at 06:47 PM ----------
Just tried it.
The search and replace bit works perfectly. It only creates a single new file though, called file02. However, it's a little strange because if I delete this file and run the script again, the replacement is called file03 (instead of file02 again). Hope that makes sense.That's because you haven't run it as a script and when you ran it as a command, variable named i's value will be there in memory of shell and it will take it from there. When you save this as a script and run this will not happen. As for file names I am still little confuse as you need to show like current_file_name--> new_file_name etc, I hope this helps you.
Thanks,
R. Singh
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LEARN ABOUT DEBIAN
trcs
trcs(1) User Manuals trcs(1) NAME
trcs - convert text files from one codeset to other SYNOPSIS
trcs -C | -l | -h trcs [-s] [-f input-codeset ] [-t output-codeset ] [ file ]... DESCRIPTION
trcs is a program for translation of text files from one codeset to other. When exact translation is impossible it tries to make approxi- mations. For example pseudographic characters are approximated by ASCII characters in codesets that have no pseudographic characters and characters with diacritical marks are approximated by existing characters. If the option -s or --gen-script is given trcs will generate simple script that invokes tr(1) This is useful if you want to include this in your script or for faster conversion of many files. If none of -C, -s, -l, -h and their equivalents is given each file will be read assuming it is coded with codeset input-codeset On standard output it will be recoded so to use codeset output-codeset If there is no file given trcs will act as filter. Both input-codeset and out- put-codeset are case insensitive and default to `cp1251'. OPTIONS
-C, --copyright Display copying conditions and warranty information. -s, --gen-script Generates conversion script for given input and output encodings instead to convert text files. -l, --list List all known codesets with their aliases. -h, --help Display this help and exit. -f input-codeset, --from[=]input-codeset Codeset of the source. -f output-codeset, --to[=]output-codeset Codeset of the output. EXAMPLES
trcs -fcyrillic -t koi8-r letter.txt Convert letter.txt from ISO-8859-5 (cyrillic) to KOI8-R and output the result on standard output. trcs --from cp437 --to=mik --gen-script >ibm2mik Generates script ibm2mik for converting from CP437 to MIK. sh ibm2mik screen.txt Convert screen.txt from CP437 to MIK. Output the result on standard output. Without parameters ibm2mik acts as filter. AUTHOR
Anton Zinoviev <anton@lml.bas.bg>, <zinoviev@fmi.uni-sofia.bg> SEE ALSO
tr(1) Linux JUN 2000 trcs(1)