iskm/learnxinyminutes-docs
1
0
Fork 0
mirror of https://github.com/adambard/learnxinyminutes-docs.git synced 2024-12-23 17:41:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Changed descriptions, added grep, fgrep examples

Browse Source
This commit is contained in:
Gregory S. Kielian 2014-10-04 14:50:00 -07:00
parent d22d591e3e
commit d83a0f0385
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
bash.html.markdown
View File

@ -200,8 +200,12 @@ sort file.txt
uniq -d file.txt uniq -d file.txt
# prints only the first column before the ',' character # prints only the first column before the ',' character
cut -d ',' -f 1 file.txt cut -d ',' -f 1 file.txt
# replaces every occurrence of 'apples' with 'oranges' in file.txt # replaces every occurrence of 'okay' with 'great' in file.txt, (regex compatible)
sed -i 's/apples/oranges/g' file.txt sed -i 's/okay/great/g' file.txt
# prints the number of lines containing the string "foo" in file.txt # print to stdout all lines of file.txt which match some regex, the example prints lines which beginning with "foo" and end in "bar"
grep -c "foo" file.txt grep "^foo.*bar$" file.txt
# pass the option "-c" to instead print the number of lines matching the regex
grep -c "^foo.*bar$" file.txt
# if you literally want to search for the string, and not the regex, use fgrep (or grep -F)
fgrep "^foo.*bar$" file.txt
``` ```