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Top Forums Shell Programming and Scripting Counting number of single quotes in a string Post 302931037 by wisecracker on Friday 9th of January 2015 04:25:37 PM
Old 01-09-2015
Longhand using builtins only and no pipes:-
(OSX 10.7.5 default bash terminal.)
Code:
#!/bin/bash
# Ensure string is complete!
txt=$(echo \"description\":\"DevOps- Test VM\'s, System Admins Test VM\'s \",)
echo "$txt"
subtext=""
char=0
count=0
while [ $char -lt ${#txt} ]
do
	subtext=$(printf "%02X" "'${txt:$char:1}")
	if [ "$subtext" == "27" ]
	then
		count=$((count+1))
	fi
	char=$(($char+1))
done
echo "Single quote occurs $count times..."

Results:-
Code:
AMIGA:barrywalker~/Desktop/Code/Shell> ./single_quote.sh
"description":"DevOps- Test VM's, System Admins Test VM's ",
Single quote occurs 2 times...
AMIGA:barrywalker~/Desktop/Code/Shell> _

EDIT:
Modified code to remove absolute (0X)27 value...
Code:
#!/bin/bash
# Ensure string is complete!
txt=$(echo \"description\":\"DevOps- Test VM\'s, System Admins Test VM\'s \",)
echo "$txt"
subtext=""
chr=$(printf "%02X" "''")
char=0
count=0
while [ $char -lt ${#txt} ]
do
	subtext=$(printf "%02X" "'${txt:$char:1}")
	if [ "$subtext" == "$chr" ]
	then
		count=$((count+1))
	fi
	char=$(($char+1))
done
echo "Single quote occurs $count times..."


Last edited by wisecracker; 01-09-2015 at 06:11 PM..
These 2 Users Gave Thanks to wisecracker For This Post:
 

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RAR_LIST(3)								 1							       RAR_LIST(3)

RarArchive::getEntries - Get full list of entries from the RAR archive

       Object oriented style (method):

SYNOPSIS
public array RarArchive::getEntries (void ) DESCRIPTION
Procedural style: array rar_list (RarArchive $rarfile) Get entries list (files and directories) from the RAR archive. Note If the archive has entries with the same name, this method, together with RarArchive foreach iteration and array-like access with numeric indexes, are the only ones to access all the entries (i.e., RarArchive::getEntry and the rar:// wrapper are insufficient). PARAMETERS
o $rarfile - A RarArchive object, opened with rar_open(3). RETURN VALUES
rar_list(3) returns array of RarEntry objects or FALSE on failure. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 3.0.0 | | | | | | | Support for RAR archives with repeated entry | | | names is no longer defective. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 Object oriented style <?php $rar_arch = RarArchive::open('solid.rar'); if ($rar_arch === FALSE) die("Could not open RAR archive."); $rar_entries = $rar_arch->getEntries(); if ($rar_entries === FALSE) die("Could retrieve entries."); echo "Found " . count($rar_entries) . " entries. "; foreach ($rar_entries as $e) { echo $e; echo " "; } $rar_arch->close(); ?> The above example will output something similar to: Found 2 entries. RarEntry for file "tese.txt" (23b93a7a) RarEntry for file "unrardll.txt" (2ed64b6e) Example #2 Procedural style <?php $rar_arch = rar_open('solid.rar'); if ($rar_arch === FALSE) die("Could not open RAR archive."); $rar_entries = rar_list($rar_arch); if ($rar_entries === FALSE) die("Could retrieve entries."); echo "Found " . count($rar_entries) . " entries. "; foreach ($rar_entries as $e) { echo $e; echo " "; } rar_close($rar_arch); ?> SEE ALSO
RarArchive::getEntry, rar:// wrapper. PHP Documentation Group RAR_LIST(3)
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