search file for a word, if found run script1, if not found run script 2

bigtony · 09-14-2016, 03:19 PM

i need to search a file and if it contains a certain word then execute script 1 and if NOT found execute script 2. What procedure would i use to search for a word in a file? examples of doing this sort of thing would also be helpful.
thank you - big tony

thesnow · 09-14-2016, 03:41 PM

What have you tried so far?

bigtony · 09-14-2016, 03:58 PM

i have tried the below, which tells me that there are 2 words "PASSED" in the file. This is the answer i want.
i do not know how to run this so that if the output is 2 then run script1 and if the output is NOT 2 to run script2
your guidance would be appreciated. - thanks tony

working expression below:
cat edge_summary.txt | grep -c PASSED
2

allend · 09-14-2016, 04:37 PM

Given

Code:

bash-4.3$ cat date.txt
Sun Sep  6 13:16:38 AEST 2015

then

Code:

bash-4.3$  grep -q Aug date.txt && echo "$? Found" || echo "$? Absent"
1 Absent
bash-4.3$  grep -q Sep date.txt && echo "$? Found" || echo "$? Absent"
0 Found

grail · 09-14-2016, 09:16 PM

If the number of found entries is important, store this information in a variable and then perform a simple 'if' to test equal or not.

bigtony · 09-14-2016, 09:29 PM

so how do i store the number of found entries in a variable
and how do i use if to test for equal or not equal?

Habitual · 09-14-2016, 09:45 PM

Quote:

Originally Posted by bigtony

so how do i store the number of found entries in a variable
and how do i use if to test for equal or not equal?

How? By reading, of course.

Variables
BASH Programming - Introduction HOW-TO
rtmistler's Bash Scripting for Dummies and Geniuses

Read / Study / Ask.

grail · 09-15-2016, 12:23 AM

Any search on pretty much any search engine would answer all those questions .. at least try and put in some effort.

allend · 09-15-2016, 08:07 AM

Quote:

the number of found entries

Is that the number of lines,

Code:

(( $(grep -c Aug date.txt) == 2 )) && ...

or, the number of occurrences?

Code:

(( $(grep -o Aug date.txt | wc -l) == 2 )) && ...