Csh grep pattern file

Connect and share knowledge within a single location that is structured and easy to search. This is my script, I want to find a pattern in a file. But I am getting if: Expression Syntax error. I'd strongly suggest not using csh or its variants for new scripts, for the reasons discussed here Why shouldn't I program in csh? Ubuntu Community Ask! Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. Shell script to search for a pattern in a file using if else Ask Question. Asked 3 years, 4 months ago. Active 3 years, 4 months ago. This can be used in grep to match the lines which end with the given string or pattern. Skip to content. Change Language. Related Articles. Table of Contents. Improve Article. Save Article. Like Article. Previous 'crontab' in Linux with Examples.

Recommended Articles. Article Contributed By :. Easy Normal Medium Hard Expert. The argument -E or -F or -P , if any, tells grep which syntax the patterns are written in. With no argument, grep expects basic regular expressions ; with -E , grep expects extended regular expressions ; with -P if supported , grep expects Perl regular expressions ; and with -F , grep expects literal strings.

Whether the patterns come from the command line or from a file doesn't matter. If you want to search for lines containing exactly one of the supplied strings and no more, then pass the -x option. I had the same error, not solved with the good answer from gilles. Looking closer in the input file, I found 2 newlines at the end. GNU grep 3. With newlines got all lines of the file and without only the matching lines. Sign up to join this community.

The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Reading grep patterns from a file Ask Question. Asked 8 years, 6 months ago. Active 2 years, 6 months ago. Viewed k times. Improve this question.