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Full Discussion: How can i use function for the below script to shorten it?
Top Forums UNIX for Dummies Questions & Answers How can i use function for the below script to shorten it? Post 302881126 by DGPickett on Thursday 26th of December 2013 05:19:12 PM
Old 12-26-2013
Code:
#!/bin/bash
 
mysub(){
if [ $1 -eq 0 ]
 then
  echo "NO CHANGES ARE NEEDED"
  exit
 else
  sed -i '1i'"$2" $3
  echo "ADDED HEADER"
 fi
)
 
zcat 2013-12-26_file1.csv.gz > 2013-12-26_file1_tmp.csv
cat 2013-12-26_file1_tmp.csv | sed 's/$/\r/' > 2013-12-26_file1.csv
grep -q "TIMESTAMP" 2013-12-26_file1.csv
mysub $? 'TIMESTAMP|id|Fisrtname' 2013-12-26_file1.csv 
 
zcat 2013-12-26_file2.csv.gz > 2013-12-26_file2_tmp.csv
cat $2013-12-26_file2.tmp.csv | sed 's/$/\r/' > 2013-12-26_file2.csv
grep -q  "ADDRESS" 2013-12-26_file2.csv
mysub $? 'ADDRESS|ID|NAME' 2013-1-26_file2.csv

Now, you can go farther, capturing file stub name by grinding it off with ${name%%.*} and suing the stub to make new names. You can pipe together stuff so you do not have intermediate files. You can take many input files from the command line or stdin.
These 2 Users Gave Thanks to DGPickett For This Post:
rbatte1 vikatakavi
 

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LEARN ABOUT OSF1

script

script(1)						      General Commands Manual							 script(1)

NAME

       script - Makes a transcript of terminal session

SYNOPSIS

       script [-a] [file]

       The script command makes a transcript of everything printed on your terminal.

OPTIONS

       Appends the transcript to file rather than writing it to file.

OPERANDS

       The name of an output file that will contain the transcript of the session.  If this parameter is omitted, the file typescript is written.

DESCRIPTION

       The transcript is written to file, or appended to file if the -a option is given.  If no file name is given, the transcript is saved in the
       file typescript.

       The script ends when the forked shell exits.

       This program is useful when you are using a CRT and want a hard-copy record of the dialog (for example, a technical writer might create	an
       example of a working session this way).

       If you specify the -a option and the file does not exist, it is created.

       If you do not specify the -a option and the file exists, it is replaced.

RESTRICTIONS

       The  script command requires a streams based terminal.  In single user mode, streams may not be enabled.  Under these circumstances, script
       will exit with no action.  If you are the superuser and need to run this command in single user mode, use the  following  special  instruc-
       tions.

   Enabling Streams
       If it is necessary to enable a streams environment in the single user mode, enter the command /sbin/init.d/streams.  This command is avail-
       able to the superuser only.

SEE ALSO

       Commands:  autopush(8), cat(1), echo(1), strsetup(8), tee(1)

       System Administration

																	 script(1)
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