Reversing and trim a String through SHELL script - unix.com.
Example 3 - How to write a UNIX shell script with a while loop that reads each line in a text file Shell scripts will frequently need to read the contents of a file, line by line, and store each line in a shell variable for additional processing. Using a while loop coupled with a read statement is a perfect way to accomplish this task.
Dear Friends, I am looking for a shell script to merge input files into one file. here is my idea: 1st paramter would be outfile file (all input files content) read all input files and merge them to input param 1 ex: if I pass 6 file names to the script then 1st file name as output file.
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A palindrome is a word, phrase, number, or other sequence of symbols or elements, whose meaning may be interpreted the same way in either forward or reverse direction. Here is a script which will tell you whether a given string is a palindrome or not.
Use a loop to check if the first and last characters in the string are the same, then check the second and second to last. put this in any chass and it will return true or fasle for if the string.
All shell script variables are untyped (well, they really are strings) -- how they are interpreted often depends on what program is using them or what operator is manipulating or examining them. The shell scripts uses File system, IO, and file redirections commands among many others.
Input that doesn't look like a number at all is interpreted as 0. With input that looks like a number (i.e., if it starts with a digit) but contains invalid characters, the script emits errors. Multi-digit input starting with 0 is interpreted as being in octal. For example, the script will tell you 77 is a C, while 077 is a D.