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Full Discussion: Automate multiple commands
Top Forums Shell Programming and Scripting Automate multiple commands Post 302815761 by gecko1 on Saturday 1st of June 2013 11:26:25 PM
Old 06-02-2013
Automate multiple commands

Hi,
I am trying to count the number of times a string of letters occurs in a file for multiple unique strings of letters. Right now I can do this one at a time using the following code (in this example I am searching for the string "AAA"):
Code:
echo AAA >> outfile.txt
grep -c "AAA" -r file_to_search.txt >> outfile.txt

The issue is that I have several thousand of these unique strings of letters to search for and would like to automate things a bit. I have tried adding a #!/bin/bash to the beginning of a file containing multiple search terms but nothing happens when I execute the file. Here is an example:
Code:
#!/bin/bash
echo AAA >> outfile.txt
grep -c "AAA" -r file_to_search.txt >> outfile.txt
echo AAB >> outfile.txt
grep -c "AAB" -r file_to_search.txt >> outfile.txt
echo AAC >> outfile.txt
grep -c "AAC" -r file_to_search.txt >> outfile.txt

I am very much a novice and would appreciate any ideas or hints.
Thanks!
 

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RDUP-UP(1)							       rdup								RDUP-UP(1)

NAME
rdup-up - update a directory tree with a rdup archive SYNOPSIS
rdup-up [OPTION]... DIRECTORY DESCRIPTION
With rdup-up you can update an (possibly) existing directory structure with a rdup archive. The rdup archive has to be given to rdup-up's standard input. Username and uids rdup outputs both the username and uid, the receiving system (which may be a totally different system) checks if the username and uid match. If the username and uid don't match the (numeric) uid is used on the file. The same holds true for the groupname and gid. OPTIONS
-n Do a dry-run and do not create anything on disk. -t Create DIRECTORY (ala mkdir -p) if it does not exist. -s N Strip N path components from a pathname. If the resulting pathname is empty after this operation it is skipped. Be careful however with the following structure: /foo /foo/bar /foo/bar/bla.txt /foo/blork/bla.txt With rdup-up -s2 this will leave: <empty> <empty> /bla.txt /bla.txt And the last 'bla.txt' will overwrite the previous one, this will happen without warnings. -r PATH This option is related to the -s option, but works different. The string PATH is removed from (the beginning of) each pathname. With -r /home/backup the pathname /home/backup/bin/mycmd becomes /bin/mycmd. The same could be done with -s 2, but then you need to count the slashes. Note -s is always performed before -r. -v Be more verbose and echo the processed files to standard output. -vv Be even more verbose and echo processed file and the uid and gid information to standard output. -T Show a table of contents of the rdup stream received (ala tar -tf -). With -T the directory argument is optional. -T unsets any verbose (-v) options. -h A short help message. -V Show the version. EXIT CODE
rdup-up return a zero exit code on success, otherwise 1 is returned. AUTHOR
Written by Miek Gieben. REPORTING BUGS
Report bugs to <miek@miek.nl>. SEE ALSO
http:/www.miek.nl/projects/rdup/ is the main site of rdup. Also see rdup(1), rdup-tr(1) and rdup-backups(7). COPYRIGHT
Copyright (C) 2005-2010 Miek Gieben. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Licensed under the GPL version 3. See the file LICENSE in the source distribution of rdup. 1.1.11 13 Dec 2008 RDUP-UP(1)
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