mirror of
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63 lines
1.9 KiB
Plaintext
63 lines
1.9 KiB
Plaintext
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1. for f in $(ls *.mp3)
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2. cp $file $target
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3. Filenames with leading dashes
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4. [ $foo = "bar" ]
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5. cd $(dirname "$f")
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6. [ "$foo" = bar && "$bar" = foo ]
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7. [[ $foo > 7 ]]
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8. grep foo bar | while read -r; do ((count++)); done
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9. if [grep foo myfile]
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10. if [bar="$foo"]; then ...
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11. if [ [ a = b ] && [ c = d ] ]; then ...
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12. read $foo
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13. cat file | sed s/foo/bar/ > file
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14. echo $foo
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15. $foo=bar
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16. foo = bar
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17. echo <<EOF
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18. su -c 'some command'
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19. cd /foo; bar
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20. [ bar == "$foo" ]
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21. for i in {1..10}; do ./something &; done
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22. cmd1 && cmd2 || cmd3
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23. echo "Hello World!"
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24. for arg in $*
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25. function foo()
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26. echo "~"
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27. local var=$(cmd)
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28. export foo=~/bar
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29. sed 's/$foo/good bye/'
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30. tr [A-Z] [a-z]
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31. ps ax | grep gedit
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32. printf "$foo"
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33. for i in {1..$n}
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34. if [[ $foo = $bar ]] (depending on intent)
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35. if [[ $foo =~ 'some RE' ]]
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36. [ -n $foo ] or [ -z $foo ]
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37. [[ -e "$broken_symlink" ]] returns 1 even though $broken_symlink exists
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38. ed file <<<"g/d\{0,3\}/s//e/g" fails
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39. expr sub-string fails for "match"
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40. On UTF-8 and Byte-Order Marks (BOM)
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41. content=$(<file)
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42. for file in ./* ; do if [[ $file != *.* ]]
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43. somecmd 2>&1 >>logfile
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44. cmd; (( ! $? )) || die
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45. y=$(( array[$x] ))
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46. read num; echo $((num+1))
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47. IFS=, read -ra fields <<< "$csv_line"
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48. export CDPATH=.:~/myProject
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49. OIFS="$IFS"; ...; IFS="$OIFS"
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50. hosts=( $(aws ...) )
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51. Non-atomic writes with xargs -P
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52. find . -exec sh -c 'echo {}' \;
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53. sudo mycmd > /myfile
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54. sudo ls /foo/*
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55. myprogram 2>&-
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56. Using xargs without -0
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57. unset a[0]
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58. month=$(date +%m); day=$(date +%d)
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59. i=$(( 10#$i ))
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60. set -euo pipefail
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61. [[ -v hash[$key] ]]
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62. (( hash[$key]++ ))
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