CODEWITHSUNDEEP
bashunix
yatici
yatici

Reputation: 577

basic alias for quote literal

Can anyone be of help why this is giving me errors and not working at my ~/.bashrc.

greatly appreciated:

alias ferr='grep ^ \'ERRROR\' '

trying to get ferr to find all lines that starts with ^ ERROR (note: space between ^ and ERRROR).

I tried this too but didn't seem to work:

ferr() {grep ^' ERROR' "$@"}

this is probably one of those of course that is the problem moments.

Upvotes: 1

Views: 58

Answers (3)

abasu
abasu

Reputation: 2524

use alias ferr='grep -E "^ERROR"' then to search all lines starting with ERROR, just use [bash]$ ferr <filename>.

To search with a different string replace what's inside "

Upvotes: 0

Aaron Digulla
Aaron Digulla

Reputation: 328574

There are several problems. Inside of single ticks \ has no effect. So the shell sees: grep ^ \ followed by ERROR' '. That means the shell only sees three of the four ticks and it wonders where the last one went.

Next, I don't think that ^ is a valid argument to grep. Try "^ ERROR" (and make sure you get the number of Rs right, too).

And if you want to match something at the start of a line, use

alias ferr="egrep '^pattern'"

where pattern is what you look for. This becomes more complex if the pattern really contains ^. For sake of simplicity, I suggest to search:

alias ferr="egrep '^. ERROR'"

i.e. search for any line that starts with anything, followed by space, followed by the word ERROR

Upvotes: 1

jbr
jbr

Reputation: 6258

Try:

alias ferr="grep ^ERRROR"

To include the space before ERROR try:

alias ferr="grep \"^ ERRROR\""

Upvotes: 0

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